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Photo Forum / Film Photography / Darkroom / March 2004help with apo rodagon lenses
Hi! What's the difference between a 50mm apo-rodagon and a 50mm apo-rodagon n? Thanks, Hugh Reilly > Hi! > What's the difference between a 50mm apo-rodagon and a 50mm apo-rodagon n? > Thanks, > Hugh Reilly Design, conmstructon, coatings, performance, etc.  SignatureTo reply no_ HPMarketing Corp. In real world use, you will see no difference between the lenses... > > Hi! > > What's the difference between a 50mm apo-rodagon and a 50mm apo-rodagon n? > > Thanks, > > Hugh Reilly > > Design, conmstructon, coatings, performance, etc. 50mm apo-rodagon 50mm apo-rodagon n Are they both enlarging lenses? which is theoretically better? One has an N at the end the other doesn't. Was the one without the N an earlier version? Maybe uncoated? Thanks, Hugh > In real world use, you will see no difference between the lenses... > [quoted text clipped - 5 lines] > > > > Design, conmstructon, coatings, performance, etc. > 50mm apo-rodagon > 50mm apo-rodagon n [quoted text clipped - 15 lines] > > > > > > Design, conmstructon, coatings, performance, etc. N is the current version. It is a reformulated version of the original and adds multi coating. Assuming you print properly with a glass carrier, a critically aligned enlarger, a good negative, etc. the N will outperform the earlier version in all aspects of printing. We would be happy to send you the performance curves for the N series if you have a US address. SignatureTo reply no_ HPMarketing Corp. Sure, the performance curves will show it is a better lens, but making two prints with each lens, you will not see a difference.. > > 50mm apo-rodagon > > 50mm apo-rodagon n [quoted text clipped - 22 lines] > happy to send you the performance curves for the N series if you have a > US address. > Sure, the performance curves will show it is a better lens, but making two > prints with each lens, you will not see a difference.. [quoted text clipped - 27 lines] > > happy to send you the performance curves for the N series if you have a > > US address. Of course you will. But you need to print properly, glass carrier, critically aligned enlarger, etc. Leave out the glass carrier or the properly aligned enlarger or printing at other then optimal aperture and you will never see optimal quality prints from any lens. And you will not see the difference in quality between lenses. SignatureTo reply no_ HPMarketing Corp. What is the optimal aperature for these lenses? And why glass? Is that becasue it flatens out the image for proper focus? You would think that the glass would somehow interfere with the sharpness of the image. Hugh > > Sure, the performance curves will show it is a better lens, but making two > > prints with each lens, you will not see a difference.. [quoted text clipped - 13 lines] > > > > > > > > > > "Bob Salomon" <bob_salomon@mindspring.com> wrote in message news:bob_salomon-DABE6A.05142620032004@news-east.ash.giganews.com... > > > > > > > Hi! > > > > > > > What's the difference between a 50mm apo-rodagon and a 50mm [quoted text clipped - 17 lines] > you will never see optimal quality prints from any lens. And you will > not see the difference in quality between lenses. > What is the optimal aperature for these lenses? And why glass? Is that > becasue it flatens out the image for proper focus? You would think that the [quoted text clipped - 50 lines] > > you will never see optimal quality prints from any lens. And you will > > not see the difference in quality between lenses. Optimal aperture with the Apo Rodagon N is 1 to 2 stops down and it will hold that quality for about another 2 stops. Why glass? Simple. The film must be held flat AND it must be in the same point at the end of the exposure as it was at the beginning. That requires glass. And no AN glass carriers have no effect on resolution or sharpness as the AN surface is used on the base side of the film and ALL professional enlargers are supplied with a glass carrier as the standard carrier. That includes Durst, Kaiser, Devere, etc. All other enlargers offer a glass carrier as an accessory. If you can't find a glass carrier then a Gepe AN glass slide mount would also work. SignatureTo reply no_ HPMarketing Corp. I can't tell you how much this information is helping me I really appreciate it. I just bought a Saunders 670dxl. Can that enlarger be "critically aligned"? I want really good prints. Color, sharpness, contrast, I want to get the best prints possible. I shoot with an old Rollei SL35E with a great Zeiss planar lens. My slides are scary sharp. And I always use a hand meter. For 645 I use a Fuji GA645 that is also amazingly sharp. So I know I have good originals. I know from asking around that the apo rodagon-n will do my negatives justice but will the Saunders do the rodagon justice? Thanks! Hugh > > What is the optimal aperature for these lenses? And why glass? Is that > > becasue it flatens out the image for proper focus? You would think that the [quoted text clipped - 64 lines] > If you can't find a glass carrier then a Gepe AN glass slide mount would > also work. > I can't tell you how much this information is helping me I really appreciate > it. I just bought a Saunders 670dxl. Can that enlarger be "critically [quoted text clipped - 85 lines] > > If you can't find a glass carrier then a Gepe AN glass slide mount would > > also work. Well first there no longer is a "Saunders". Saunders sold the LPL enlarger and the Saunders company was sold to Tiffen. Tiffen then went into bankruptcy and the LPL line became part of Satter Omega in the U.S. But yes it can be put into proper alignment. Satter Omega can help you with instructions on proper alignment. SignatureTo reply no_ HPMarketing Corp. Thanks for everything! Hugh > > I can't tell you how much this information is helping me I really appreciate > > it. I just bought a Saunders 670dxl. Can that enlarger be "critically [quoted text clipped - 19 lines] > > > > > > > > > > > > "Bob Salomon" <bob_salomon@mindspring.com> wrote in message news:bob_salomon-197554.12232520032004@news-east.ash.giganews.com... > > > > > > > > 50mm apo-rodagon > > > > > > > > 50mm apo-rodagon n [quoted text clipped - 70 lines] > But yes it can be put into proper alignment. Satter Omega can help you > with instructions on proper alignment. |
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