DrPablo wrote:
I'd think that if lenses can support ridiculously high resolution things like 8x10 and 11x14 cameras (heck 20x24 cameras), then they'd be able to support a 22 MP 24x36mm chip. Unless the contention is that LF has so much excess resolution that you can get away with film out-resolving the lens.
Most 4x5 lenses resolve about 40-60 l/mm and film outresolves the lens in this case. 135mm lenses need much more lines as the same picture is recorded on a smaller surface and the information is compressed more in this case.
I think at least some of the Canon lenses will not have problems with a 22mp body
I asked the guy who posted the information (dual mode high DR 2x 8.35 mpixel, 16.7 combined). He got them through the word-of-mouth protocol, so no websites to point at, nor other forms of confirmation. So these numbers keep their "rumour" status.
bathman wrote:
135mm lenses need much more lines as the same picture is recorded on a smaller surface and the information is compressed more in this case.
I think at least some of the Canon lenses will not have problems with a 22mp body
I may be completely confused about this, but intuitively I'd think that a 6 MP DSLR would be much more dependant on good glass than a 22 MP DSLR.
A sensor that is so inherently limited really couldn't afford any detail loss because of bad glass. I'd think that a higher res sensor would be less impaired by glass quality, just because it is more capable of capturing what the lens transmits.
It is the other way around. If you compare two sensors of the same size, then the one with fewer pixels also has larger pixels, which thus collect light from a larger area of the lens, thus stressing each microarea less, since it averages over this area anyway. The smaller the pixels, the more important it is that light is transmitted cleanly and sharply from each microarea, otherwise the extra resolution of the sensor only collects noise.
Re the fuji S5.
From a recent article in bjp that I do not have to hand the fuji man said that the S3 was definately now finished and that whilst they were still wishing to remain in the high end dslr market no new camera woudl be shown (or even perhaps announced) at this coming photokina.
foto-z wrote:
Hi, I would not rely on my post but my friend does beta testing for several manufacturers and is very well-connected so I thought it was worth posting. He mentioned that they weren't getting better IQ, just bigger files. I am not sure why, but I assume that the lenses are not really supporting 22 MP and that the smaller pixels are more noisy. If that's the case, then Canon might have hit a wall and the only way up will be MF digital.
This reminds me of what is called 'empty magnification' in microscopy - where the NA (numerical aperture) of the objective determines resolution. Adding more powerful eyepieces can increase the magnification but not the resolution.
Tom
marcwilson wrote:
Re the fuji S5.
From a recent article in bjp that I do not have to hand the fuji man said that the S3 was definately now finished and that whilst they were still wishing to remain in the high end dslr market no new camera woudl be shown (or even perhaps announced) at this coming photokina.
Thom Hogan, author of a whole range of Camera Guides (D50, D70, D100, D200, D1 series, D2h, D2x, S2 Pro, S3 Pro) Fujifilm will make a "development annoucement of the S5 Pro" one day before Photokina, on the 25th. Whatever that may be exactly...
The chance of him having some additional info on upcoming cameras seems pretty high, given what he has written sofar.
Pentax announces 3 new lenses for the K- and *ist series:
- 16-50 mm f/2.8 ED wide-angle zoom
- 50-135 mm f/2,8 ED telephoto zoom
- 60-250 mm f/4 ED super-telephoto zoom
The wide and tele to be marketed from march 2007 onwards, the super-tele "in 2007"
And they annouce the Pentax 645 Digital: An 18 mpixel medium format camera with exchangable lenses, PENTAX 645AF mount and compatible with existing smc PENTAX 645-series lenses. Expected future product upgrades will eventually bring 30 mpixel.
Sam Bennett wrote:
I would be so excited about a 1.7 crop factor fixed focal length lens P&S... if it was only at least f/2.8. Sigma really blew it there.
I think I could live with f/4.0, but no VF, and no hotshoe for an external one. How many cent would it have cost them to add a hotshoe? Sometimes, I wonder what goes on in people's minds
