My slides are plastic mounted. In my case, expensive projectors and lenses does not seem to solve all the problems!!
I have Apollo lens and Kodak Select lens. With Appollo lens, its hard to focus on anything. Kodak Select lens is very sharp but has poor-edge sharpness problem. Kodak Select lens are expensive series Thanks Ramesh --- graywolf <[EMAIL PROTECTED]> wrote: > Also there are curved field lenses for paper or > plastic mounted slides, and flat > field lenses for glass mounted slides. If you have > the wrong one you will have > edge sharpness problems with your projected slides. > Also if a non-glass mounted > slide is kept in the film gate too long the slide > will pop more than normal and > go out of focus either at the center or the edges. > Then the condensers in the > projector could be out of alignment. And there were > $5 projector lenses and $500 > projector lenses the difference between them is > immense. Back in the old days > the Leitz and Schneider lenses were the best, with > several brands considered > somewhat below them. None of the Kodak lenses were > considered great, OK at best. > > All of the above says there could be any number of > reasons his projected slides > were not super sharp, even if the macro was. > > > William Robb wrote: > > ----- Original Message ----- > > From: "Fred" > > Subject: Re: FA 50/2.8 Macro > > > > > > > >>>>Sometimes the lens defects in the slide > projector's lens can make > >>>>a good slide (taken with a good camera lens) > look bad. So, do > >>>>you know for sure that the slide image itself is > soft at the > >>>>edges? (Have you checked the slide with a > loupe?) > >> > >>>You may be right, this could be due to projector. > I do > >>>not see this behavoir when viewing on the 17" > monitor. > >> > >>I have been right only on very rare occasions, > Ramesh, so don't take > >>anything I say too seriously - <g>. > > > > > > In this instance, I would say you are right. Slide > projectors tend to have > > really bad lenses, though I am sure there are > exceptions. > > Also, there is no guarantee that the slide is > perfectly parallel to the > > screen, or that the curvature of the lens field is > identical to the > > curvature of the slide (there will be some, unless > it is glass mounted). > > As well, to get maximum light transmission, > projector lenses tend to be > > pretty fast optics, which leads to a whole nother > set of problems. > > Making a decision about camera lens quality by > viewing a slide show isn't > > thinking things through very well. > > > > William Robb > > > > > > -- > graywolf > http://graywolfphoto.com > > "You might as well accept people as they are, > you are not going to be able to change them anyway." > > __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com
