Slashdot Mirror
Canon's new 16.7MP Digital SLR, with WiFi
LoudMusic writes "Canon has recently announced the EOS 1Ds Mark II, successor to their previous excellent professional cameras. What makes this one so cool is that it can network. The early review over at dpreview.com says there is an optional part that gives it both 802.11a/g and wired networking capabilities. I can see photographers shooting sporting events with a 12" Powerbook in a backpack receiving images to its 80GB drive and automatically uploading them to SI. And with its full 35mm CMOS it is the first camera to effectively reproduce the image quality of 35mm film. I wonder if it plays mp3s too ..."
This is not the first digital camera with a full 35 mm size sensor. Canon 1Ds already had that at the previous Photokina two years ago.
To be fair, Canon (for once) took a technological idea from Nikon. The D2H had wireless FTP support back in July 2003.
Also there have been 35mm sensors before, including Canon's own 1Ds.
You tell me how "whilst" differs from "while," and I'll stop calling you a pretentious jackass.
And with its full 35mm CMOS it is the first camera to effectively reproduce the image quality of 35mm film.
:)
The Canon 1Ds (11 megapixel) has a full frame sensor (in other words, does not have the 1.6:1 cropping of the 300D, 10D, and now 20D).
The original Mark II was 8 megapixels and its biggest advantage was its ability to rapid fire shots - like 8 or 9fps, out to 20 frames... something like that.
The 1Ds was the king of image quality. Now it seems like Canon is offering the best of both worlds. If you have 8 or 10 grand or whatever they are pricing it at
We might mention that Nikon beat Canon to the punch with a wireless adapter for the D2H back in July. Still a cool development from Canon, but give credit where credit is due, I allus say.
This is a great camera! I want one, but one thing wrong with the story submission. This is not recent news, many people have gone over this before, but a 6MP sensor is enough to get you better then 35mm film.
The 16.7MP of this camera is getting very close to medium format (if not already there).
Again awesome camera!
see
not file
like-it-is
shootout
This guy is one of the best. If you don't believe me check out dpreview or google
I don't think so!o delTechSpecsAct&fcategoryid=139&modelid=10 598
.94 inch CMOS array essentially tells you they have a cmos with a 7micron pixel pitch. This is hardly revolutionary. Assuming the optics are similar in quality to a comparable film camera, to have the same image quality that would be equivalent to saying that ordinary film has 7 micron light sensitive (silver?) particles. This is ridiculous!
/ resolution.html
http://consumer.usa.canon.com/ir/controller?act=M
From here.
4992 x 3328 pixels over a (36 x 24 mm) 1.4 x
http://science.howstuffworks.com/film3.htm
here says that "The imaging layers contain sub-micron sized grains of silver-halide crystals that act as the photon detectors". That's submicron.
So it's a nice camera. That doesn't mean it's a fantastic sensor - it still suffers from the same attributes that other CMOS/CCD sensors do. They've got phenomenal ADC's but the sensors just can't be packed as tightly as silver can be.
http://www.home.earthlink.net/~fyiglover/articles
says that "All three silver microfilm manufacturers (Agfa, Fuji & Kodak) certify their medium speed microfilms to have the ability to achieve 800 lines/mm of resolution."
Having a 35mm CMOS has nothing to do with the image quality. It has to do with the "mental math" that the photographer has to do when he uses lenses. On most Digital SLR cameras, there is a conversion multiplier because the sensor is not the same size as a 35mm film frame. That conversion is unnecessary if the sensor is the same size as the 35mm frame. But then we all know that slashdot editors take exhaustive measures to research their stories before posting...
:)
What bugs me is that 35mm is considered 1, and all other sizes have to be converted. Maybe we need a better standard that could accomidate different sensor / film sizes while using standard nomenclature for lenses. I doubt it is even possible, but some genius somewhere could do it I bet...
Yes, it was badly worded. As others have mentioned, the original 1Ds was full-frame as well. The big thing about this one is the 16.7 MP resolution, which if I'm not mistaken beats medium format cameras for some applications (i.e. especially for low-light photography, and if you're not making a very large print).
Good comparison between medium format and the old 1Ds here.
Canon's WFT-E1 Wireless Transmitter reportedly also works on Canon's three newest digital cameras, including the 1DsmkII (as mentioned), as well as the 20D ($1500, 8mp, 1.6x crop factor, high end consumer level) and 1DmkII ($4500, 8mp, 1.3x crop factor, pro body).
Rob Galbraith has a much more information here, as Canon's site appears to still need an update.
For the non-pro enthusiast, the 20D looks to be a great camera. It can handle 5 frames per second, instant on, and has ISO 3200 performance that beats most ISO 400 digicams. They are finally trickling into the market, and Calumet likely has a few in stock (they have several kits locally here in Boston). Just give them a call.
in high res, snapping a bunch of pics with this and transmitting them over 802.11g isn't going to go very fast
Well, let's do the math, shall we?
14,000,000 pixels @ 24 bits/pixel = 336,000,000 bits (raw, uncompressed)
336,000,000 bits @ 54,000,000 bits/second = 6.22 seconds (not counting overhead of 802.11g)
So I'd say that 1 full resolution, lightly compressed photo every 10 seconds is a no brainer. I'd also say that getting 1 photo per second with good compression and perhaps lower resolution would be almost trivial. Compressing a photo to 1/6 its size in storage space can be done with very little degradation.
-Adam
The camera doesn't magically convert/multiply a 100mm lens into a 160mm lens (on a 1.6 crop factor camera) -- the lens is the same, the sensor is smaller.
Across different cameras, the lens is still projecting the same image based on whatever lens size, but depending on the size of the sensor, not all of it is getting captured (i.e. some of the full image is being cropped out)..
See here --s tanding-series/dslr-mag.shtml
http://www.luminous-landscape.com/tutorials/under
Scroll a little more than half-way down and look at the pic of the bird with the blue and red boxes.
If you squeeze 50 megapixels on a 5mm CMOS, there's still gonna be a crop factor because the 5mm CMOS is a lot smaller than the film negatives these lenses were originally intended for..
It is difficult to compare the resolution of film to digital because film "resolution" varies greatly.
If we consider "resolution" to be the maximum size one can blow up an image before noticable grain (in the case of film) or pixelation (in the case of digital), low-ISO film still "wins". I still don't think this a fair comparison though because pixels are not grains.
Digital cameras, regardless of ISO used, output the same resolution across all speeds. Film on the other hand, changes. At higher ISO's, the grain becomes visible at much smaller print sizes.
There are some specialty films out there that can easily create a many meter sized print without noticible grain.
But, in the end, for general purpose film, even a 6 mp digital SLR camera will give you better performance. Especially at higher ISO's, if you shoot in RAW. The real catch so far has been competing with the likes of velvia...
-
Here's a review of the original 1Ds from luminous-landscape. To sum it up (it's rather lengthy), the author favorably compares the 1Ds to medium format film.
A few questions: What does noise look like on photographs? What causes noise when you take photographs? Why are digitals better at handling noise?
Depending on whether you're talking about a digital original or a film original, noise looks different from one to the other. On a digital original, noise shows up as "blotchiness" for lack of a better description. Shoot a field of something that's generally the same color (a baseball field at night, for instance) on a digital camera at its highest ISO setting. If the noise is noticeable (which it is on most digital cameras), you'll see random patches where the color doesn't quite match.
Noise in film is different. I'm no photographic expert, but as I understand it film noise is usually caused by the grain itself obscuring some of the detail in the photograph. The shape of the grain is not 100% uniform, and neither is the orientation of the individual grain particles. So you won't get consistent detail throughout an image. I might be wrong on this, but that's my understanding. Regardless, the higher the ISO of the film, the higher the noise level.
Keep in mind that even those photographers who shoot film usually end up needing to get those film negatives scanned so that the photographs can be digitally manipulated. It's a rare photographer these days who can shoot, develop, print and enlarge exclusively with optics and chemicals. The scanning process itself introduces some noise into the photo image, further reducing the quality of the film image, and even the best optics introduce some noise into an image, so people using optical technologies stick to first-generation copies whenever possible.
In a digital camera, the sensor has a fixed amount of light-gathering capability. At higher ISO equivalency settings, the effective sensitivity of the sensor is increased by amplifying whatever signal is detected. The signals are amplified somewhat at all ISO settings on most digital cameras, but the amplification level is higher at higher ISOs. It's this amplification process that introduces noise in a digital camera.
BTW: Digitals aren't automatically better at handling noise than film cameras. It depends on the sensor in the digital and the film used in the film camera.
The larger the sensor is in a digital camera, the more native light-gathering capability it has, and the less amplification is required to get a usable signal from the sensor. This leads to lower noise in the image at any ISO. For instance, Canon's Digital Rebel (EOS 300D) digital SLR has an APS-C-sized sensor (370 sq mm) with 6.3MP, while Sony, Olympus and even Canon sell "prosumer" digital cameras that use sensors that are 2/3" in size (58 sq mm). The 2/3" sensor's got about 1/6th the total area of the 300D's APS-C sensor. Factoring in the difference in resolution, that means that the 300D's APS-sized sensor has a little more than 8 times the area per pixel for gathering light than does a "prosumer" 2/3" 8MP sensor. This adds up to dramatically lower noise for the 300D at any ISO, as I can personally attest. I bought a KonicaMinolta Dimage A2 and returned it because the noise at virtually all ISO settings was objectionable (all my pictures looked blotchy). The Canon 300D has lower noise than the A2 at all settings, and the noisiest the Canon ever gets (1600 ISO) is still lower than the noise levels I saw from the A2 at 400 ISO.
Now, imagine going from an APS-C sized sensor (370 sq mm) to a full-frame 35mm sensor (864 sq mm). That 35mm sensor is about 2.3 times bigger than the APS-C sensor. Even with 2.7 times as many pixels, the 35mm sensor still has enormous light-gathering power per pixel. In addition, I'm betting that Canon's putting its most advanced sensor technology in the 1Ds Mark II, meaning that the sensor is more sensitive than the sensors used in most other cameras, again requiring less amplification and thus generating less noise.
Compared with a comparable Canon 35mm body with the same lens, a picture sho