Archived posting to the Leica Users Group, 1998/06/16
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Alan, Thanks for the info. So, given your experience, what should I buy? A CF or FF lens? My slides are in standard plastic mounts. Nathan Alan Ball/LUNA wrote: > Hi Nathan, > > I use the Pradovit 600 and own both CF (Zeiss-Ikon 90mm f2.8 CF) and > regular (Zeiss T* Sonnar 90mm f2.5) lenses. Sorry to disappoint you, but > the soft corner syndrome is not eradicated by Leica projectors. It seems > the CF lenses (including the Colorplan CF) are calculated for the curvature > induced by cardboard mounts. They don't do much good (if any) with plastic > mounts. Furthermore, and despite what has been written in some magazines, > the Pradovits are not immune to the dreaded "pop" effect due to the heat, > though slides projected through the Pradovit 600 seem to "pop" less > frequently and after a longer time in front the lamp. > > So, like or not (and I HATE it), the only way to be sure you are going to > get even sharpness on your projected slides is to use anti-Newton glass > frames.... > > Alan > Brussels-Belgium > > Nathan Wajsman <nathan.wajsman@euronet.be> on 16/06/98 07:39:45 > Please respond to leica-users@mejac.palo-alto.ca.us > To: Leica list <leica-users@mejac.palo-alto.ca.us> > cc: > Subject: [Leica] Pradovit and Colorplan lenses > > Hi all, > > I have decided to replace my Kodak 4600 projector--I am tired of seeing > soft corners on slides that are perfect on the light table. Given my > recent affliction with the Leica bug, the obvious choice is one of the > Pradovit models. I have also decided to get the 90mm Colorplan lens to > go with it. My question is: which one? I see that there are two > Colorplan lenses, one FF (flat field) and one CF (curved field), and > also a Super Colorplan CF lens. For projecting plastic-mounted slides at > home, what should I get--curved field or flat field? > > Also, what is the difference between the Colorplan P-2 and the Super > Colorplan P-2 (other than price)? > > Many thanks for your replies. > > Nathan > > -- > Nathan Wajsman > Overijse, Belgium > > Photography page: http://members.tripod.com/~belgiangator/index.html > Motorcycle page: > http://www.geocities.com/motorcity/downs/1704/index.html