Michael, the large speed knob is for the short exposure times i.e. 1/15 thru 1/500. If you want to use any of these exposure times you turn...
Hi, the Agfa Super Intergon is a 6-element symmetrical process plasmat with 70 degree + coverage with very good performance, comparable to the...
Hi, the better enlarger lenses often are non-symmetrical plasmats, in design very similar to taking lenses. In performance such enlarger lenses...
Hi, I heard that those very small apertures were used for diffuse pre-exposures in repro shops, these very low apertures were not to be used to...
Kelly, thank you for your comments about the "only for flat-field" myth, these symmetrical process lenses are for 5:1 thru 1:5 range,and macro...
Hi, you may lok at the Uni-series of Berlebach (Uni-6 or Uni-7 etc. .. I believe). These also have center columns if wanted, and they are very...
Hi, good idea, go ahead with the Hasselblad focal plane body. I am doing this with the Rollei SL66, which has a focal plane shutter plus 50 mm...
Hi, let's not be negative or sarcastic, the issue is not art but documentation of today's world, therefore let us be more generous about this...
George, the Plaubel Peco Profias were, I believe, the #1 selling LF cameras among profesionals in Germany. They cover 4x5, 5x7(13x18 cm), 8x10,...
Hi, just in case you have the CL-version of the Apo-Gerogon 9/300, then front and rear cells may be screwed direct into a Copal 3 shutter. The...
Hi, I found that increasing airspace between front and rear cells is not critical with artar-type designs. Increasing air space with these lenses...
Hi Peter, I tried the 480 only on smaller formats, in that case you only use the very sweetspot of the image circle, performance at infinity was...
hi Peter, the Apo Saphir is a non-symmetrical lens, it is not of the dialyte-Artar-Apo Ronar-etc. design. I believe it is a Tessar derivative....
Stephen, the Apo-Gerogon 9/270 is a 6-element process plasmat, stop down to f11-16, and the then very good quality is not a surprise since you...
Hi, "Sinaron S" is identical in design with "Sironar N", while "Sironar SE" is identical with "Sironar S", somewhat confusing indeed. Greetings...
Hi, I have problems with unscrewing front/rear cells from Apo Nikkor barrel lenses (process type). Anybody out there who has experience ? .. by...
Paul, I would expect that the 305 G-Claron with ca. 70+ degrees picture angle offer definitely more image circle than the M-Nikkor (Tessar type)...
Chris, I believe it is a six-element four-cell lens like the G-Claron et al. .. the lens is relatively rare compared to the more common...
Hi, the offered sprintscan ultra's come only with Polaroid's software, is there a way to get Silverfast at reasonable cost, or is Vuescan a...
Rainer, sorry for my late reply, I believe it's a compur #2 shutter. Best regards Joerg
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