The Future of Digital Camera Technology 429
An anonymous reader writes "CNet News has an interesting look at where digital camera technology is headed now that the megapixel buzzword can be put to rest. From the article: 'In compact cameras, I think that the megapixel race is pretty much over,' says Chuck Westfall, director of media for Canon's camera marketing group. 'Seven- and eight-megapixel cameras seem to be more than adequate. We can easily go up to a 13-by-19 print and see very, very clear detail.'"
stop the jpegs! (Score:2, Insightful)
Re:stop the jpegs! (Score:5, Informative)
Er, it's called RAW, and all pro cameras and even a lot of pocket cams are capable of using it. This is unrasterized data, so it's about as lossless as it gets (even TIFF is destructive because it rasterizes the images before it's saved).
The problem with RAW formats right now is that they're all proprietary, but this isn't really that big of a deal in practice. Generally speaking, if an image editor supports RAW at all, it will support every major camera. And every camera that supports RAW also ships with its own conversion software (so you can save as whatever format you want).
Re:stop the jpegs! (Score:3, Interesting)
Re:stop the jpegs! (Score:3, Informative)
Others might want to look at that site [openraw.org] as well, it has some interesting pages on it (dealing with the closed RAW formats issue). Of course taking the survey can't hurt
Re:stop the jpegs! (Score:2)
Re:stop the jpegs! (Score:4, Insightful)
On one hand, you suggest a technology that sucks the ever-loving batteries dry and on another, you suggest improving batteries. Battery life is probably far better without using wireless. Batteries are a chemical energy storage technology that simply cannot, by their very nature, improve as quicly as transistor process technology, the best way to improve battery life is to make electronics not draw excess current in the first place. Flash cards are improving in size pretty well. Anything higher than 5MP is going to demand practice and heavy stabilization, through optics and a tripod, to take full advantage of the sensor resolution.
Overrated (Score:4, Interesting)
What he's asking for already exists. You can use RAW mode or some cameras will even save as TIFFs if you don't want jpegs. Same for wireless - that stuff is already available (although not mainstream -- yet). Current batteries aren't bad either (heck, I can fill a 2GB card on a single battery). Also, for pros who do a lot of shooting, there has been specialized battery packs for years [for the camera AND flashes] and such solutions...
There are plenty of things that suck with cameras nowadays, and these things aren't it.
The interface/menus on most cameras suck (especially P&S cameras - those menus are like a fucking maze, and what about the impossible to remember button combinations for anything non-trivial?)
Dynamic Range. I don't want more megapixels, and current noise levels are about as good as they'll ever get (compromises). But I *WANT* more dynamic range already - even better, a film-like "shoulder" in the response curve (in the highlights) - without having to combine pictures. It's annoying to have to combine shots all the time (even if one uses ND grads). This is perhaps the biggest issue with regards to digital photography right now.
What about that four thirds "universal" system they used to talk so much about? I don't want to sell all my Nikon glass (several thousand $'s worth) to be able to use a Canon camera, or what if I wanted to use a Canon lens on my Nikon? This was supposed to let you do it by swapping a mount/adapter. Absolute freedom! No more system lock-in!
The lighting system on most cameras is quickly becoming a mess. Forget about tried and working "real" TTL (matrix, color matrix or whatever). Now you need special oddball not-quite-TTL (dTTL/eTTL/iTTL) flashes for every new camera they put out... It's getting more complicated as you try to use things like plain TTL strobes and such... CCDs made this harder, and they try to make you believe it's better now, but it isn't.
There are tons of things that could really improve...
There are many things which have improved a lot on recent cameras: things like startup times and shutter lag, orientation sensors are pretty much standard, etc.
People worry too much about megapixels. You also need the [expensive] glass with sufficient resolving power to make use of it. And for 99% of the population, it's already overkill. How many megapixels one needs to make bullseye snapshots of their dogs? Give 'em a million megapixels and their photos will still suck. And resolution isn't "linear". To have a picture twice the size in each direction, you need 4x the resolution i.e. the difference between a 5 and a 6MP camera is nearly non-existant. If you need more megapixels than the current cameras, most likely you'll need to switch to a medium format camrea with a digital back (mainly because even the most expensive 35mm lenses only have so much resolving power), which will cost tens of thousands.
Re:Overrated (Score:3, Insightful)
Something that was solved quite some time ago by the early Camedia cameras from Olympus and anything similar to it.
Dynamic Range. I don't want more megapixels, and current noise levels are about as good as they'll ever get (compromises). But I *WANT* more dynamic range already - even better, a film-like "shoulder"
Re:Overrated (Score:4, Informative)
If you're referring to dynamic range the same as one does in film, that is, seven "stops", then simply adding more bits to the A/DC doesn't get you there. You need better sensors, as a pixel well has characteristics too. Namely a noise floor and a ceiling that saturates with too much light. Mess with the ceiling in an attempt to prevent early saturation, and you kill low-light sensitivity. Dive too deeply into the floor, and you have noise issues.
The standard analogy is a set of stairs five feet tall. I can have each stair be a foot high, or each stair be 6" high. With the later, I have more "bits", and be more accurate in terms of height (color), but the set of stairs will still only be five foot tall. In film terms, I will have captured only five "stops" of data, no matter how finely I divide them up.
That's why you see such oddball attempts at sensor design, like Fuji's SuperCCD, where one sensor in each matrix is harder to saturate, and as such is dedicated to pulling more detail out of the highlights.
Now in that case, you do need more bits to represent the data, but not in the way normally thought of. A 10-bit converter will still map the white point to 0xFFFF and the black point to 0x0000, and get the job done, but as range increases that leaves you with larger gaps (posterization) between individual points in the range. A 12-bit A/DC will fill in those gaps and give you smoother transitions.
Re:Overrated (Score:3, Informative)
A small detail maybe, but it would between 0x00 and 0xFF for 8 bit data.
Of course you are completely right about
Battery and speed (Score:2, Interesting)
1. Battery life. If you snap pictures with lossless formatting, and thus increase the storage space used per picture, your battery life will plummet. Simply because the camera will be expending much more energy, either
Re:Battery and speed (Score:3, Interesting)
That said, my (very) old digital camera taking photos at 320x240 (Maximum resolution) was shit fast.
Re:stop the jpegs! (Score:2, Informative)
You can (and SHOULD if you're serious about photography) save in a lossless 12bit format - it's called RAW.
Decent optical zoom - buy a dSLR and you can get any zoom from fisheye to extreme telephoto, macro and more.
13MP - already exceeded by Canon and Kodak in their dSLRs. Hasselblad has 39 MP!
Wireless - already there in Canon 1DS Mark II I think.
Re:stop the jpegs! (Score:3, Insightful)
1) Optical lenses - SLR? Aftermarket lenses available?
2) Memory available - CF, SD, capable of using 2GB+ cards
3) Speed - how fast does it start, how fast can it autofocus (if enabled), how long between shots
Like many others, eventually went with the Canon 20D, and am very happy.
Re:stop the jpegs! (Score:5, Informative)
Want decent optical zooms? SLR lenseshave been available for decades now that range from 8mm to a whopping 1200mm. That's over 100x for you guys used to talking about lenses in terms of "how much zoom" they have. Canon's lens selection [canon.com].
Want 13MP? The Canon 5D [canon.com] does 12.8. The Canon 1Ds Mark II [canon.com] does 16.8.
Want storage? You can get CF/SD cards as large as 8 gb, and portable hard drives such as the Epson P-2000 [dpreview.com] made for offloading photos out in the field.
Want to wirelessly transmit photos? The 1Ds Mark II can do it with the WFT-E1A [bhphotovideo.com].
Current batteries can let you shoot 2500 shots on a single charge. Spare batteries are cheap and keeping spares in your bag is no big deal.
The thing is that all this technology is already available, but be prepared to spend thousands of dollars for it. If you're looking for all this technology crammed into an everyday point & shoot, give it a few more years.
Instead of more MP, how about better high ISO capabilities? No shutter lag from when you press the button to when the camera takes the picture? How about taking photos at 8fps? Instant-on when you power up your camera? Quicker autofocus? These features are very important, but these too are available on DSLRs, and for a price. Considering how little money you're spending on a point & shoot, they do quite a bit as it is and they'll only get better. The technology is already there and it will eventually find its way down to lower end cameras.
Re:stop the jpegs! (Score:2, Interesting)
Re:stop the jpegs! (Score:2)
13MP, 24 bit color = a 39 megabyte file. That's what the parent was talking about saving. If you save a 39 megabyte jpg instead, that would be the stupid choice.
Re:stop the jpegs! (Score:5, Informative)
Re:stop the jpegs! (Score:2)
Re:stop the jpegs! (Score:4, Informative)
A 1 MP camera has one million photodetectors, half of which are green, 1/4 red, and 1/4 blue (in most cameras). From this image a one megapixel output image with all RGB components for each pixel is interpolated.
Then there is the issue about bits per pixel. Sensors commonly has 10 or 12 bits per pixel. With a 12 bits per pixel, 13 MP sesor you thus get:
13M * 12 = 156 Mbits = 19.5 Mbytes.
Re:stop the jpegs! (Score:2)
Re:stop the jpegs! (Score:2)
Wireless is very different from USB. USB means you have to think about transfering files and monitoring disk space. If you had a camera
Re:stop the jpegs! (Score:2)
Think of it as the purchasing power of a dollar. It's not a case of everything costing exactly $1. It's about how much you can buy with $1. Think of buying an item today, versus buying an item a year from now (with a moderate inflation rate over that time period). You'll be able to buy
Re:stop the jpegs! (Score:2)
File size is not the issue, A JPEG will almost always have a significantly smaller file size for a given resolution. The point is JPEG is a LOSSY format, even at the BEST setting, the image will not extract to the image the CCD's grabbed. At the highest end, cameras have a RAW format that doesn't bother with compression at all (hence, LOSSLESS), at the cost of MASSIVE file size. A 13 Mpixel picture could alm
Re:stop the jpegs! (Score:3, Interesting)
It seems some people are just going down the road "RAW, nothing else but RAW..." without thinking about this sentence at all. Compare it with mp3 if you want. Try to squeeze a minute of music into an 1MB wave-file and compare that with a minute of music in an 1MB mp3-file. Which will sound better?
If storage space and memory card speed go into the equation at all it will always be better to compress data. This is the point of jpeg, mpeg, mp
Re:stop the jpegs! (Score:5, Interesting)
I lay out books and magazines for a living, and the vast majority of images that come to us are 300 dpi jpegs, or tiffs and eps's converted FROM jpegs. We routinely print oversized glossy material, which uses trim sizes greater than 8x10 in virtually all cases. We have had no quality issues, and I speak from a production environment.
Resolution is more important than compression method. Ten times out of ten I guarantee you couldn't tell the difference between a RAW file and a Fine JPEG image.
The color problems you speak of are caused by the camera, not jpeg itself. The jpeg file format is capable of rendering in any color space, and provides excellent color reproduction. Problems can arise from the internal jpeg engine in the camera, which in a less expensive model may not accurately convert the raw data from the sensor.
Re:stop the jpegs! (Score:3, Interesting)
JPEG is a balance between size and quality, I realize this. So do you, I guess. I also have a 20D, and several 35mm Canons--I'm a fan of macro photography. However, shoot your scenes with both RAW+JPEG when you get the chance, using superfine compression, and compare for yourself.
The 20D's JPEG encoder is terrible. It's optomized for battery life: low processor usage. Photoshop can produce *****much***** better results from tiffs co
RAW conversion matters, too. (Score:3, Informative)
JPEG Files (Score:3, Insightful)
Why all the big attachment to JPEGs?
Isn't it better to be taking lossless pictures with digital cameras anyway?
(My digital camera only writes in jpg format. I'm not sure if this is rare amongst digital cameras nowdays, but it doesn't seem ideal.)
Re:JPEG Files (Score:3, Insightful)
Plus, I think people might be pissed if you told them that their 40GB iPods would only hold about 50 CDs worth of music. Then again, maybe not.
Re:JPEG Files (Score:2)
What it comes down to is a tradeoff between image quality and storage space (where less storage space leads to a lower cost). Digital cameras wouldn't be affordable to the vast majority of people if that tradeoff wasn't made.
When it comes to cameras, storage space is one of those needs that cannot be satiated. People will always want more storage space. At least using JPEG, f
Re:JPEG Files (Score:3, Insightful)
Re:JPEG Files (Score:3, Insightful)
The sort of obsolesence you describe only applies to physical media formats and proprietary data formats. Open formats like JPEG, MP3 and so on should be decodeable in 100, even 200 years, since the source code is widely available and published.
Re:JPEG Files (Score:2)
Re:JPEG Files (Score:3, Interesting)
Once you go beyond about 5 megapixels it seems rather rare to be stuck with any one format. My Lumix (Panasonic) FZ30 (8mp) does does raw or tiff in addition to jpeg, but the CCD has a lot of noise in low light situations so the extra memory requirement may not be justified.
The march of technology (Score:2, Interesting)
Re:The march of technology (Score:2)
Re:The march of technology (Score:4, Insightful)
Don't ever underestimate the ability of software to become far more bloated, and less efficient. It's a problem that has plagued the industry for years.
3 megapixel cameras were more than adequate... (Score:3, Insightful)
You assume full frame... (Score:2, Insightful)
Re:Crop Zoom (Score:4, Insightful)
Not quite. An 8MP sensor has sqrt(2) = 1.4 times as many pixels in each direction to get twice as many pixels overall. So it's only equivalent to a 1.4x zoom.
You actually need to go to 16MP to get the equivalent of a 2x zoom on 4MP, which is quite a different proposition.
The other problem of more pixels is the one you mentioned yourself - more noise. A low noise 800MP sensor would be far too big to fit in a normal sized camera.
Re:bullshit (Score:3, Insightful)
I have a number of 35mm cameras - I love the feel of film cameras - but the digital SLR also works well.
And no, I'm not blind. The digital print was done at 300 PPI (54 MP after interpolation and sharpened in the GIMP). It looks very goo
The next likely advancement: (Score:5, Insightful)
Re:The next likely advancement: (Score:2)
Re:The next likely advancement: (Score:2, Informative)
Interpolation through motion compensation! Yes that brain-ruining technology that takes multiple low-r
Stopping Throwing Away Data (Score:5, Interesting)
Actually, even if you had a theoretically "perfect" CCD or CMOS, you can catch about two-to-four times as many photons.
The problem lies in the way the photosites capture light. Most designs are variants of the every other location is green with red and blue alternating the others. Something like:
RG
GB
Green gets twice the representation as human eyes are more sensitive to green and thus more detail in that part of the spectrum is considered desirable.
A recent trick to squeeze out more is to turn the photosites at 45 degrees to the grid you actually capture. You're then forced to interpolate more but the theory is that you get a smoother response.
Regardless though, any given location can catch red OR green OR blue parts of the spectrum. If green falls, 50% of it is lost. If red falls, 75% is lost - same with blue. You're always throwing away half to three quarters of your photons simply by having photosites dedicated to individual colors.
With Foveon they try tackling things differently. By exploiting the fact that different wavelengths can penetrate silicon to different depths, they figured you can have a three layer deep photosite that captures red AND green AND blue - none of this ignoring chunks of the spectrum and throwing away data.
Of course, for all it's a cool idea, it's proprietary, has only made it in to a few cameras and doesn't seem to be hitting its full potential yet. My guess is there's still quite a bit left that can be squeezed out of CMOS (Canon's 10D got noisy at-or-just-after 400 ISO wherease the 20D, 18 months later, could handle 800) and we'll see them follow that technology for a while whilst waiting for Foveon to move out of patent protection.
Still, in the future, I'd imagine we'll see Foveon or something different but exploiting some similar concepts replace individual colored photosites. Until that point, no matter how good things get, there's always a full stop of light's worth of extra quality sitting and waiting.
Re:Stopping Throwing Away Data (Score:4, Insightful)
25 years, in the modern world, is arguably far longer than necessary. It'll be the 2020s by the time anyone else can start using that tech. That made sense when it could take many years to build machining tools, build production lines, market in your home town before slowly moving wider, etc. In today's business world, that's no longer true. Even fifty years ago, you could assume that most of the techs discovered today would be valid in 25 years - that's just not true anymore.
Given you can take an idea through to IPO within five years and then build that business to significant dominance within another five, given that you can use that time to develop your tech, adding new patents on the advances, I would argue that ten years - given the pace of modern business - is plenty.
Re:Stopping Throwing Away Data (Score:3, Informative)
They have the Sigma SD9 and SD10, the Polaroid x530 and Hanvision HVDUO-5M and -10M. Polaroid's in bankrupcy hearings and Sigma's SD10 was a late 2003 model.
Their website has nothing more advanced than their 10.2MP Foveon - which appears to be the same one used in the early 2002 Sigma SD9. They also have no recent press releases that I can find.
So, in short, nothing much for two years.
Bill Gates, meet Chuck Westfall... (Score:3, Funny)
Mult-use devices (Score:4, Interesting)
I personally carry my phone around far more than I do my camera, and consequently I find myself taking photos where I'd normally be wishing I had my camera with me. Integration can be disastrous if the usability of any of the devices is affected, but if done properly, it can be excellent. Bring on the iPod Camcorder Phone!
Re:Mult-use devices (Score:2)
That is why we need to take caution with these sorts of integrated devices. Soon enough they perform neither function reliably. It is often better to have a cell phone that is only a cell phone, and a camera that
Re:Mult-use devices (Score:2)
My "real" camera's lens is bigger than my cell phone. Just because of optical limitations alone, you'll never have a decent camera in a cell phone.
Re:Mult-use devices (Score:3, Insightful)
That must be why microscope lenses are so crappy.
I'd like to correct your assertion that it's somehow difficult to make a small, sharp, lens. It's far easier to design and build a tack-sharp lens that is 6mm across than to make an equally sharp lens that is 40mm across. Similarly, the larger the lens, the more elements and groups you must add to the design to cor
Those who flunk History are doomed to repeat it (Score:3, Interesting)
Anyone care to guess how long it will be before this quote supplants "640K should be enough for anybody" as the Worst Technology Prediction Ever?
Re:Those who flunk History are doomed to repeat it (Score:4, Informative)
The 8MP (or whatever it may end up being) limit is defined by human perception. If no human being can distinguish between a photograph displayed at resolution A and the same photo displayed at resolution B which is greater by some factor, then B is more than adequate and nobody's going to want or need anything beyond that, even if it's techonologically feasible.
In digital audio, we really have reached the limit of human perception, which is probably around 320KB/s, 48kHz. There is probably no technical problem in creating digital audio at 4MB/s, 1Mhz, but you don't hear any audio engineers asking for it.
No similar limit of perception applies to our ability to use and store information.
Re:Those who flunk History are doomed to repeat it (Score:5, Informative)
Anyone care to guess how long it will be before this quote supplants "640K should be enough for anybody" as the Worst Technology Prediction Ever?
I would say the digital photography field is just a little different than the general computing field, so that really isn't that bad a statement. Your average snapshooter isn't clamoring to print his photos at 36x48 inches nor crop 90% of their image and still expect to have decent resolution. There are a lot of people who are really quite happy with their 3- and 4-megapixel cameras. Having eight or more megapixels is just icing on the cake except for people who actually need or want the extra resolution for various reasons. Even a sharp 3MP photo can often be printed up to 13x19 and still look decent. At the consumer level we really have reached the flattening-out part of the curve in terms of the megapixel race.
What the digital camera world really needs more than ever-increasing megapixels at this point is A) improved dynamic range, B) less noise at high ISO ranges (800-3200+), and C) more cameras with built-in image stabilization. These three things will actually solve real-life problems that people have when taking pictures.
I think dynamic range is the biggest problem. Cameras just aren't capable yet of getting information out of both deep shadows and bright highlights in the same image the way our eyes can. This is confusing to most people and ruins a lot of shots. "Blown" highlights and pure black shadows with no retrievable information are the bane of the digital photography world. Sure, you can shoot RAW and try to manipulate it in Photoshop, but that is really way beyond most people.
Besides dynamic range, most shots are ruined by blur. Either the shutter speed was too slow to stop the movement of the subject, which can be helped a lot by higher ISO capabilities, or the camera was moving too much, which can be helped quite a bit by some built-in image stabilization. Bottom line is, lack of megapixels is no longer the cause of most unacceptable photographs for most people. Except for the pros, it's time to move on to improving other features. I can't really envision a world where regular people are screaming for 32-megapixel compact cameras. Ain't gonna happen.
Re:maybe you can answer this (Score:3, Informative)
You say you don't like dSLRs, but you don't say what you're trying to shoot, so I don't know
Just a quick Primer (Score:5, Informative)
There are two other things that can make or break a camera
What seems to slip by the average digital camera buyer, is that megapixels are only relevant in relation to the size of the CCD/CMOS.
SIZE does matter.
BIGGER is BETTER.
Here's a great website that does a basic talk about sensor sizes [dpreview.com]
If you follow [dpreview.com] the [dpreview.com] links [dpreview.com] you'll learn a lot more about why the sensor & pixel size are possibly more important than just the megapixels offered.
Re:Just a quick Primer (Score:2)
Pro verses consumer (Score:3, Insightful)
7 or 8 megapixel may be adequate for consumer cameras but even the highest pixel count availible doesn't match the needs of a lot of professionals. They've finally hit pro level but for high res work many still need to use film. The mass market race is over but pro cameras will keep increasing for years to come. A 4'x5' still has far more resolution than the best camera on the market today.
Re:Pro verses consumer (Score:3, Insightful)
I love my digital camera, really. But there's so much more warmth, depth, and life in my film camera shots.
Just like music - digital has a ways to go before it can match the
Re:Pro verses consumer (Score:2)
We're not talking about just ease of use or a nice work flow with digital anymore, which used to be the main draw for many pros. We're talking about better quality of the image also. No, not every digital camera is going to be better than 35mm film. But some are. The EOS 5D is one of them. Yes, it's 3000 bucks so you'll have to pay
Re:Pro verses consumer (Score:3, Insightful)
I used to shoot almost 100% Velvia (and actually, it's more 40 ISO than the listed 50) in both my Canons and my Hassys in landscapes and still lifes (sometimes product shots)...except of course when I was doing model shots because Velvia really makes skin tones appear too "ruddy". I've switched to almost 100% digital now, and since
Still shooting large format film (Score:5, Insightful)
I was looking at an ad in the New York Times just last week. It was a full-page photo for a major telecom and all I saw was pixels. It was something and art director would never have stood for even a couple of years ago but will accept today in exchange for the digital workflow and instant gratification. I'm not sure a lot of people who state how much resolution is enough have ever seen a good print made from a piece of large format film. But then again this isn't so different from what large format photographers were saying when 35mm came on the scene and it turns out the world was big enough for both.
Re:Still shooting large format film (Score:2)
Re:Still shooting large format film (Score:4, Interesting)
There is a medium-format digital back that came out recently with 38-megapixels. Something tells me that by the time your film goes the way of the dodo there will be quite a few options available for you to do the same quality work with digital that you've been doing with film. Printing at 30x40 is a piece of cake even for the 16MP Canon 1Ds Mark II. Is it going to have the same resolution if you look at it with a magnifying glass? No, but what are you doing looking at a poster with a magnifying glass? Unless you're printing billboard-size, you aren't actually seeing all that resolution under most circumstances. If you really do have the skill and the audience that require all that resolution I'm sure you'll be able to afford a digital solution in the near future that will closely approximate what you're doing with film, if not surpass it eventually. Think of it as an opportunity rather than a roadblock.
A good site to check out if you haven't seen it already is luminous-landscape.com, where the owner of the site is an experienced professional photographer who has done some interesting comparisons between digital and film and found to his own amazement that digital has now surpassed the image quality of 35mm film and is working on overtaking even medium-format. That was a couple of years ago. Looks like there is a recent article by another large-format photographer that you may find very interesting, comparing the 4x5 film you use with the very 38MP back that I mentioned earlier. Happy reading:
http://luminous-landscape.com/essays/Cramer.shtml [luminous-landscape.com]
Re:Pro verses consumer (Score:4, Insightful)
A consumer digital camera certainly won't meet the needs of a professional photographer, but there ARE professional digital cameras out there.
For medium format, there are companies like Leaf (now owned by Kodak) with 30MP or more. For large format (like the 4x5 you mention) there are scanning backs that will give you 500MB files or larger. Even scanning a 4x5 tranny on a high-end drum scanner will give you little more detail than that, with a lot more hassle (check out Better Light, or other names like that - these have been available for YEARS).
They're not cheap, but they're available.
The things I'd like to see improve in pro-sumer cameras are noise levels, shutter lag, and sensitivity. I have a Panasonic Lumix LX1 (8MP) which i AWESOME including a wide angle lens from Leica. However, the noise in low-light pictures drives me nuts.
I used to be a professional photographer, and worked for a company that specialized in devices that used laser imaging to output images on film and paper (up to 4 by 10 FEET at 400 pixels per inch). A 500MB file from a 4x5 scanning back looks stunning at that size.
MadCow.
Re:Pro verses consumer (Score:3, Informative)
Charlie and I are friends, and I got to see some of his test prints the other day. Compared to 4x5 film test exposures, there was a slight loss of detail in the digital back prints - aliasing or some similar artifact on tiny text along the edge of a dumpster.
One thing though, is that medium format is where digital is really making some quality leaps. Set free from the small but yield-killing 35mm frame sensor size, medium format digital backs are tru
I'd like to see them focus on: (Score:2, Interesting)
Re:I'd like to see them focus on: (Score:3, Interesting)
A tripod or "steadycam" attachment solves that very well now so you don't have to wait. Even a monopod helps a lot.
Large aperture (aka fast) lenses get you a lot of the way there - but will cost and be on cameras with detachable lenses. With static subjects you can just expose it until noise becomes a problem (well over thirty seconds with some cameras - which have noise compensation that make much longer exposures look reasonable). Eventually they'll be more se
My position (Score:4, Interesting)
As a professional graphic designer and artist, I feel that we'll still need a bit more in order to say "we've got enough pixels." For instance, I do a lot of texture photography - shots of various objects, capturing as much of a surface as I can. I want my stock textures to be as high-res as possible, because there are times where I need to isolate very small areas and blow them up to an extreme. Same goes for regular stock photography; I need to be able to isolate and blow up certain parts to an extreme, and I can't always set up a nice macro shot (with a random occuring event, such as a drop of water).
In short? No, 8mp isn't enough for me.
Re:My position (Score:2)
You probably need a better lens, not more megapixels; and that won't be happening in consumer cameras for quite a while. I have an 8mp DSLR, and even at 8MP, the clarity isn't that great simply because I have cheap lenses. Also, they said that for the consumer cameras, the megapixel race is over. Of course for professional cameras (which I suppose you count as a professional, i
Video/HDR and more - keep developing (Score:3, Interesting)
However many megapixels, but I can still only capture 640x480 video. theres no reason this couldn't be full PAL/NTSC or even HD - add a weight to it and you have a extremely good quality video camera for very cheap.
Let me edit the camera OS and I'll implement it myself, including time lapse or variable frame rate. I'll connect it to my laptop so i don't run out of space.
They keep wanting to milk us for every new "HD" format video camera.
The other thing they can implement is HDR photography. I know RAW is good, but if they can master true HDR that would be awesome.
We want more! (Score:2)
Is Full-Frame the Future? (Score:2, Interesting)
Canon appears more dedicated to the full frame format. The new 5D and the lack of true "pro" lenses in the EF-S format seem to demonstrate this.
Nikon looks more dedicated to its DX format, especially given its new D200 and selection of "pro" lenses (its 17-55mm f2.8, for example).
Both companies and some third-partie
Image stabilization on lower-end cameras (Score:2)
Konica Minolta was the only one really doing that (Score:2)
Light field photography (Score:5, Informative)
I highly encourage you to check out his light field photography site [stanford.edu], including his galleries, tech reports, and papers. It'll blow you away.
My wish: "focus bracketing" (Score:5, Interesting)
Re:My wish: "focus bracketing" (Score:2)
Re:My wish: "focus bracketing" (Score:2)
Olympus E-system cameras have this feature (Score:3, Informative)
Your wish has been granted (Score:3, Informative)
What do I want? (Score:3, Interesting)
Concord seem to have that problem solved.
More than the 3 MPxl resolution would be nice, but is not the top priority for me.
Reducing the latency to near-zero is my next request - cheap camera-phones almost manage it; why not "proper" compact cameras.
Good low-light performance, and a flash that can be set to a default of "off" would also be good.
(Again, those camera phones seem to do pretty well in this
Now you've solved these I'll happily push up to 6-8 Mpxl if this does not lose the low-latency low-light performance.
I might even pay £100 for such
Andy
Speed! (Score:5, Insightful)
Re: (Score:2)
Re: (Score:2)
There's no point (Score:2, Funny)
Please mod it down.
the problem w/ "oughtta be enough for anybody" ... (Score:3, Insightful)
Doesn't everyone at some point end up cropping their digital photos, and hitting the jaggies? The main reason I'd like more (and more and more) resolution is because I don't *know* how big I want that photo to be shown in the future, and I don't know if cousin Vinny has a hilarious expression on his face that will be lost in the haze at 5MP but might be a treasure at 10MP
The idea that 8 or 10 MP is "enough" and that now everyone can just go home and be happy isn't completely groundless (we've certainly reached a point where "more pixels" isn't the main thing being sought by camera buyers), but it's only true while other things (sensor designs, storage capacity, cheap-yet-bright-and-not-too-heavy lenses) catch up and remind us that data uncaptured is data that can't be restored.
I'm sort of hoping that mid-range DSLRs hit 12MP in the next 2 years, and that Pentax still makes one that runs on AA batteries
timothy
Re:the problem w/ "oughtta be enough for anybody" (Score:2)
Doesn't everyone at some point end up cropping their digital photos, and hitting the jaggies? The main reason I'd like more (and more and more) resolution is because I don't *know* how big I want that photo to be shown in the future, and I don't know if cousin Vinny has a hilarious expression on his face that will be lost in the haze at 5MP but might be a treasure at 10MP
>>>
I think most manufacturers as well as consumers agree that an add-on telephoto lens is a more economical and s
The entire industry is based on lies (Score:3, Informative)
The only sensor that takes full RGB readings at each sensor location is Foveon, but it suffers from inferior color reproduction and lower ISO sensitivity. It's also pretty low on "real" pixel count - currently at around 3.5MP (which in Canon/Nikon terminology would be called 10MP, because each pixel takes full RGB readout). Foveon pictures are extremely sharp, though, and render textures very well. If they solved their color reproduction issues and upped the pixel count to "real" 5MP - I'd RUN to the store with my credit card in hand to buy a camera based on this sensor.
Overrated: simplistic assumptions. (Score:5, Informative)
The only sensor that takes full RGB readings at each sensor location is Foveon, but it suffers from inferior color reproduction and lower ISO sensitivity. It's also pretty low on "real" pixel count - currently at around 3.5MP (which in Canon/Nikon terminology would be called 10MP, because each pixel takes full RGB readout). Foveon pictures are extremely sharp, though, and render textures very well."
This utterly fails to take into account how the human visual system works. It also fails to take into account the necessity of filtering when sampling. It also fails to take into account the sophistication of current interpolation algorithms.
The Bayer pattern is actually just about the most efficient layout for capturing images for human perception. I have done dozens of camparison of images capture using the 6Million Bayer arrayed sensors, versus 10.2 Million layered sensors. In the end they are essentially equivalent. The bayer layout allows you to do more with less by taking into account the human image processing system that is heavily organized to toward luminance/green information.
It is utter fanboy nonsense to say a bayer 8MP camera turns into a 2MP when taking fall foliage shots. In any real world situation including fall foliage, an 8MP bayer camera like the Canon 350D will capture more detail than the Foveon sensored SD10 NEW 10.2 Million Pixels (3.4 Mp Red + 3.4 MP Green + 3.4 Mp Blue) (description from Sigma USA page).
As technical bunch we should be able to understand that optimization is sometimes better than brute force. By tilting the sensor toward green, it is tilted toward luminance capture and tilted toward the way humans view details.
In thousand of empirical comparison online, parity is reached when there is an approximately equal number of green sensors. So 6MP bayer (3MP green) where approximate equal to 10.2MP foveon chip with ~3MP green. Actual 10MP bayer (5MP green) cameras like Nikon D200 easily capture much more detail than Sigmas 10.2MP chip.
The sampling issue. The Sigma has no filter to prevent undersampling artifacts. It doesn't suffer from colour moire artifacts, but it has plenty of luminance moire. See here for an ancient comparison of the 6MP Canon D60 and the 10.2MP Sigma SD9:
http://www.wfu.edu/~matthews/misc/DigPhotog/alias/ [wfu.edu]
Scroll to the photo comparison at the end. The only extra detail in the Foveon based image is Aliasing errors. These are extremely prevalent in Sigma images with sharp diagnals, or repeating patterns beyond the Nyquist frequency of the sensor.
In the end, bayer is an excellent engineering optimization to do more with less. The real comparison that counts is how does it compare with film. A 6mp Bayer sensor in an DSLR is already better than 35mm film. By 10MP it is significantly better.
The other important factor is how the bayer DPI translates in the printed image. I have found that around 240 DPI is close to optimal image quality. So a Canon 350D with a 3456 pixel image width can produce a superb quality image about 14 inches wide. Be aware this is not to say you can't print larger. This is highly subjective depending on source material, but with detailed material this is the point where I consider that you would be hard pressed to notice any improvement from more pixels.
So even if you only want to print 13"x19" I think you could still see improvement from more pixels if printing detailed subjects like landscapes.
You can argue the quandry of subject, material and view distance till the cows come when considering viable prints size. I mere wish to express what I consider the
trees trees trees (Score:2)
From the article: (Score:2)
"Canon's S2 IS can even film and snap stills simultaneously, thanks to separate shutter and start-stop buttons."
Can even what?
Image stabilizers (Score:3, Interesting)
16:9 widescreen format to suit next gen displays (Score:4, Insightful)
Anyone else notice how digicams all take 4:3 pictures these days no matter how high end they are, just as the public is moving to 16:9 as the default ratio?
So....
any digicams out there ahead of the pack and already implementing widescreen resolutions by default?
I would think that a 1920x1080 camera phone would be quite the sweet spot for storage and speed while preserving good quality pictures for viewing on TVs direct from the camera....
Anyone?
Re:16:9 widescreen format to suit next gen display (Score:3, Informative)
(the same as film)
Multiple ISOs in same picture? (Score:3, Interesting)
A given piece of film can only have one sensitivity, but digital cameras now let you choose the ISO you want for your photo. Is there a technology yet that will use multiple ISOs in the same shot in order to get everything properly lit, or at least closer to it?
I don't know whether that would look good or not, but it would probably produce more usable pictures for things like security cameras.
If it does look good, and you could combine it with the "multiple focus" technology liked to by supersat here [slashdot.org], you could basically point and shoot at random, then sit down later to crop and refocus the picture until it's perfect.
Re:Has anyone heard of X3? (Score:2)
Also, cameras that capture precisely all three colors are still only matched to our limited human vision. The red, green, and blue colors are simply the colors t
Re:Some update suggestions to DSLRs (Score:3, Informative)
http://www.dpreview.com/news/0601/06012606olympuse 330evolt.asp [dpreview.com]
Personally I prefer to use the viewfinder everytime - but put that down to what I'm used to. I'll bet Olympus will sell alot of these cameras to those like you upgrading from a digital compact who demand the lcd viewpoint. The real sales point for this particular DSLR though is the ultrasonic