Vesa Perala wrote: > > > > >Yes, but at what price? You could never reach the same resolution > >as on film. That's not what *I* expect from digital. I expect > >an advantage to convince me to switch, not a disadvantage. > > Then it would be your choise to use "film" lenses or not with > digital bodies. Couldn't the film be also the limiting factor > (resolution wise) so in such case the digital would provide > better resolution with any (good enough) lens.
I don't think there are a whole lot of 35mm lenses that would be sharp enough to provide the same resolution (in "pixel", not lp/mm obviously) on a much smaller digital sensor. Film may actually be the most limiting factor (lens and film are always both limiting the resolution of the system) with some excellent lenses, but if you introduce the "format factor" things change. > >Again, when I can't have the larger aperture, I can't have the > >shallow DOF. Ok, I could alter it digitally, but then I could > >use Corel Draw to draw the entire image and save the money I > >would have to invest into digital :-) This is not *photo*graphy > >anymore (painting with *light*), we should call it "computerography" > >or something like that. ;-) > > Well, I *tried* to give you a larger aperture in digital use to > have shallow DOF... > > What I tried to say was that perhaps there could be lenses which > are designed to have aperture range f2 to f22 (or f16) in digital > bodies with smaller sensors and apertures f2.8 (or f4) to f22 in > film bodies, both with good quallity. In such case the design > wouldn't need to be as good (and large ?, heavy and expensive) > as in a case where you could use f2 with film (=large "sensor"). > As we know it is the edge sharpness which becomes bad first > when the lens optical speed increases. In such case the designer > could improve the center sharpness (for digital) and provide good > edge sharpness only with smaller apertures (for film use). > > Just brainstorming... I think I misread your original post somewhat. I can imagine this might be possible to do. Thomas Bantel * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
