On 1/26/03 8:58 AM, "Mark Roberts" <[EMAIL PROTECTED]> wrote:
>> my Japanese is aweful, is that a home made adaptor? or is it an extension >> tube with eos mount on one side and k mount on the other? That would take >> out infinity focus wouldn't it? > > If he was able to make it reeeeeealy thin (Pentax mount is supposed to > have the lens 1.5mm farther from the film plane than Canon) it would > work. Perhaps he just gives up infinity focus (the FA85/1.4 supposedly > isn't very good at all beyond portrait distances) and shoots at close > range. > >> I was told an k mount to eos mount adaptor >> would not work becuase of the placement of the pentax apeture springs > > No idea. Yep, he knew he had to give up the infinity focus of course. I have no idea why he bothered taking time to do this but he has to like the FA*85/1.4 so much to do this :-). But he is saying that it is a reckless experiment.... Pentax screw mount lenses could be fitted to EOS through some kind of adaptor but not the K-mount because of the aperture lever interfering with the guts of the EOS (mirror etc). K-mount flange is smaller than EOS mount, so all you have to do is to clear the aperture pin (spring), but in the process, it will change the flange back dimension, thus losing the infinity. It appears that what he did was to use the EOS body cap (!) which was thinned down as much as possible, and glued (1) it to the K-mount flange taken from the close-up ring. He says the focussing distance is between 30cm to 1m, and only good for the mug shot but not really for the torso shot. Later, he said he trimmed the thickness of the "converter" by another 3mm which barely enabled the torso shot. BTW, the URL quoted was shown in one of the more casual chat lists in Japan where people were becoming rather sarcastic about the waiting for the new Pentax digital, and someone threw this in, almost as a black joke. The way people feel is the same everywhere :-). Cheers, Ken
