On Jan 19, 2006, at 1:07 PM, John Forbes wrote:
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.
Based on what I see from the DA14 fitted to an MX body, it will be quite difficult to use a DA14 and get edge/corner quality on any format with a maximum offset from the optical axis larger than about 17mm, for about a 24x24mm format max. I suspect the same would be true of the DA12-24.
Godfrey
