John Forbes wrote:
On Thu, 19 Jan 2006 20:43:17 -0000, Christian
<[EMAIL PROTECTED]> wrote:
Adam Maas wrote:
Nikon is doing 12.4MP in APS-C, that's the sensor in the D2x.
-Adam
Sorry, I always forget about that one. And it is supposed to have
really good noise properties too.
It seems to me that there is no good reason why Samsung, or anybody
else, can't produce a sensor which is half-way in size between APS-C
and 35mm (24x36). This would be about 50% bigger than APS-C but would
still, I think, allow all Pentax DA lenses to be used without
vignetting. Crop factor would be around 1.3.
If Nikon can squeeze excellent results out of an APS-C sensor with 12.4
Mpixels, a 50% bigger sensor should be able to manage
around 18 mpixels, and will make the new 12-24mm zoom equivalent to
16-31mm on 35mm, which is pretty good.
It would still be considerably cheaper to make than a full-frame sensor.
That's what I would be aiming to do if I were running Pentax/Samsung.
But of course, I'm not.
JOhn
APS-H, a la Canon 1D and Kodak DCS760.
But there is a major disadvantage. Wide angle lenses lose their wide,
and you can't use any of the 'digital wides' except the generally poor
performing Sigma 12-24 because of coverage problems as they don't cover
APS-H at the wide end. The 1.3x crop size also is more susceptible to
poor edge performance that is avoided with the APS-C cameras and plagues
full-frame (Consumer lenses are generally unusable on Full Frame cameras
because of how apparent their weaknesses become).
-Adam
