>Btw, has anyone ever seen actual proof of the claim that digital sensors >result in quality loss in the corners with these extreme wide- angles? >(because the individual sensors have little lenses on top, to accumulate >light, which works best at an perpendicular angle) > >Since the 1Ds is the only one to fully use these corners, I would have >expected a more general consensus that this quality loss is indeed a >fact....but until now I have the impression that it is more theory, perhaps >only valid at even higher pixel-densities? > >Or: does the frequently made claim that the 1Ds creates sharper images 35mm >film, or even better than 6x7 camera, _still hold true_ for these extreme >wide angles? >(can only compare 35mm film with 35mm full-frame sensor of course, there >are no equivalent 6x7 wide-angles, at least not SLR)
I think I can give you an opinion based in my experience. I own a 1Ds and use it with my 14mm and 16-35mm. I've shooted many, many pictures with this equipment and I can say: 1. Color fringing do exist 2. It does not appear systematically but only in some circumstances; mainly when the picture borders are much contrasted. 3. It's possible, and frankly pleasant, to use extreme wides with full format digital cameras but you need to be prepared to the fact that "some" pictures may get out not perfect. An extremely small percentage. By the way this phenomenon is too present in a lesser grade with film cameras. In the digital arena it will produce new lenses, so called telecentric, that will be launched in the future and in which the light attack the sensor with a smaller angle. Meanwhile I will follow using my extreme wides with my 1Ds. So, you can understand now how this matter is not frequently commented in the web. I've noted much more the color fringing and the distortion with my 1Ds and a Nikkor 28 PC with a N/C converter, Canon has not this usefull focal in tilt lenses, where if, decentring, I go beyond the established limits in either sense the fringing and the distortion is huge. I hope this can help.Please excuse my language dullness! Kind regards Felix * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
