Luminous Landscape Forum

Equipment & Techniques => Medium Format / Film / Digital Backs – and Large Sensor Photography => Topic started by: marcmccalmont on August 17, 2009, 07:45:25 am

Title: Rodenstock HR Digaron-W
Post by: marcmccalmont on August 17, 2009, 07:45:25 am
Does anyone know why the Rodenstock HR Digaron-W 40mm and 50mm are so expensive and the 70mm and 90mm are reasonably priced?
Does any one have a firs hand coparison between say the Rodenstock 50mm HR and the Schneider 47mm digitar?
Thanks
Marc
Title: Rodenstock HR Digaron-W
Post by: georgl on August 17, 2009, 01:07:19 pm
The new WA-Digaron-lenses are (weak) retrofocus-designs, the number of elements/groups already shows how difficult those lenses are to design/assemble.   A Summilux 24mm also costs twice as much as a 50mm...
As long as your MFDB (or you're shooting film) can deal with more oblique light rays, classic, symmetrical designs are still the best choice (despite vignetting).
Title: Rodenstock HR Digaron-W
Post by: marcmccalmont on August 17, 2009, 03:57:58 pm
Quote from: georgl
The new WA-Digaron-lenses are (weak) retrofocus-designs, the number of elements/groups already shows how difficult those lenses are to design/assemble.   A Summilux 24mm also costs twice as much as a 50mm...
As long as your MFDB (or you're shooting film) can deal with more oblique light rays, classic, symmetrical designs are still the best choice (despite vignetting).
George
I'll be using a P45+ and a cambo rs what lenses would you recommend that would resolve to the next generation MFDB like a P65+? I would like the investment in lenses to last beyond the P45+. up to 20mm shift so image circle is a consideration also.
Marc
Title: Rodenstock HR Digaron-W
Post by: Christopher on August 17, 2009, 06:49:56 pm
Quote from: marcmccalmont
George
I'll be using a P45+ and a cambo rs what lenses would you recommend that would resolve to the next generation MFDB like a P65+? I would like the investment in lenses to last beyond the P45+. up to 20mm shift so image circle is a consideration also.
Marc


Well I think your pushing it. You won't find a wide lens with 20mm shift for a P65. Or I must have missed a lens. The 47XL will be getting really soft at these shift numbers, on all other wide lenses you will already have hit a black circle. I am not 100% sure but I think to get something like a 20mm shift you need to get up to 70mm + I know that my Rodenstock HR Digaron-W 90mm can shift that much with the P65. The Rodenstock HR Digaron-W 40mm however can't. Nore can the Schneider 35 or any wider lens.
Title: Rodenstock HR Digaron-W
Post by: marcmccalmont on August 18, 2009, 03:17:19 pm
Quote from: Christopher
Well I think your pushing it. You won't find a wide lens with 20mm shift for a P65. Or I must have missed a lens. The 47XL will be getting really soft at these shift numbers, on all other wide lenses you will already have hit a black circle. I am not 100% sure but I think to get something like a 20mm shift you need to get up to 70mm + I know that my Rodenstock HR Digaron-W 90mm can shift that much with the P65. The Rodenstock HR Digaron-W 40mm however can't. Nore can the Schneider 35 or any wider lens.
Which lenses are your favorites?
Marc