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View Full Version : 420 f9 apo ronar for 12x20


tim810
28-Apr-2008, 20:43
Will It work. I just acquired it and am wanting to know coverage. I have a very sharp and light 19" f11 APO Artar in ilex 4. The lenses are close enough to wonder which will be better. Oh, and the 16.5 Ronar is in a nice copal 3.

Thanks in advance Tim
Ling Z
28-Apr-2008, 21:05
The 420mm Apo Ronar has an image circle of ~320mm, and it can barely cover 8x10. I don't think it can work for 12x20.
David Vickery
29-Apr-2008, 07:55
I don't have a 420mm Ronar so I can't say what it will cover, but my guess is that it would not cover the 12x20. But I bet that it would cover 11x14. I have a 240mm Ronar that easily covers 8x10 with some room for movements. My 19" Artar covers 12x20.
Jan Pedersen
29-Apr-2008, 08:20
Sounds like you need to try the 420. My 300mm Apo-Ronar covers 8x10 easily despite Rodenstocks listed IC.
tim810
29-Apr-2008, 08:31
My 19" is beautifull on the 12x20 and has a good range of movements. The 420 actually came with my 11x14 and does cover it. I was just seeing how far I may be able to push the 420.
Thanks everyone
Gord Robinson
30-Apr-2008, 08:20
You can check out the technical information for Rodenstock lenses at this site. For some reason the 420mm Apo Ronar isn't listed so I assume that it is not a current model.

http://www.prograf.ru/rodenstock/largeformat_en.html#Apo-Ronar

Gord
Gord Robinson
30-Apr-2008, 08:36
Another site with more information on the coverage of the Apo Ronars and other Rodenstock lenses. This one includes the 420mm. I have only used my 420 Apo Ronar on a 5x7 camera and it produces very sharp images.

http://www.butzi.net/rodenstock/apo-ronar/p20.htm

Gord
Bob Salomon
30-Apr-2008, 12:00
All Apo Ronar lenses are discontinued. The 420 covered 323mm @ f22 @ infinity and was discontinued in the USA at the end of 1990.
Gustavo
9-May-2008, 09:19
Tim from this post it seems that the lens wont work on 11 X 14
Pete Roody
9-May-2008, 10:45
Tim from this post it seems that the lens wont work on 11 X 14

These lenses (ronars) cover more than published specs say! People who sight these specs should try the lenses first. I have the 480mm Ronar and it covers well above the 396mm published. I never had a 420mm version so I can't say for sure it covers (11x14) but for contact printing, I would guess it should be fine.