On 8/22/06, Godfrey DiGiorgi <[EMAIL PROTECTED]> wrote: > You need 1:2 magnification (fitting an ~24x36mm slide onto an > ~18x24mm digital format). A Pentax-A 50mm f/2.8 Macro lens does this > very nicely, without extension tubes. I use a flat panel light box > and a copy stand to hold the camera in alignment.
I was concerned about placing an extension tube between camera and bellows. 1:2 would be ideal. Not sure that I can achieve that with the tube in place. However, I can do the copy stand thing with my enlarger stand. > > Of course, you don't get results quite the equal of a film scanner, > although it's faster. After all, you get about a 6Mpixel image rather > than, say, a 10.2 Mpixel image (2820 ppi) or 21.43 Mpixel (4000 ppi). Currently, I'm getting hi res scans with no shadow detail. A loss of resolution and a better overall image is fine by me. Thanks for the tips. > > I use this method to scan Minox subminiature negatives however, where > a 4000 ppi film scanner returns 2.18 Mpixels and the Pentax DS with > macro lens + 2x teleconverter + extension tube setup nets 5Mpixel. > > Godfrey > > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > -- Scott Loveless http://www.twosixteen.com Shoot more film! -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
