I have a Corfield WA67, it is a quality camera with 10 mm rise or fall the lens is a Schneider 47mm Super Angulon in helical mount, the film back fitted is a Mamiya RB 67 Pro SD, would a P25+ or any other back be usable with this camera, if so would the lens deliver on digital.
I have heard that the lens can be replaced with a wider Schneider digital with the same nodal point.
If a back can be used without a lot of modification I'm thinking it would be a nice cheapish system to have, any thoughts please.
If you are wondering what exactly this camera is here is a link to a review http://ruimoraisdesousa.blogspot.com/2009/...ield-wa-67.html
Kevin.
Hi Kevin,
Digital, also a P25, require stricter tolerances than film. Specifically the distance between sensor and lens need to be focused to a tolerance of about 0.02mm, which is about ten times more accurate than film. That said, if the lens is mounted perfect parallel to the sensor, using a helical focus mount should work. The camera you ask of seem to have fall and rise. It can doubtful if this camera will have the tolerances required in its sliding mechanism, it may or may not work. I assume you would focus using the helical focus. A new Schneider or Rodenstock should work as far as focus. As far as lens, a replacement with a newer model Schneider 47mm XL may or may not be acceptably sharp for a P25. I tried on 4x5 using Schneider 58 and 72mm XLs using my 28MP Leaf Aptus 65. The 72 was very sharp, while the 58 was not same sharp. This however may related to difficulty in focusing on a viewcamera so wide on small sensor sized area, because.. frank... details are small on groundglass. With helical focus should work better. This said, obvious a digital lens would be sharper.
The camera you mention truly looks very very lovely. One consideration, perhaps it would be sad to make modifications to such truly lovely camera? It is made for film, and 6x7 still offers a very good quality option. If it has an older Schneider 47mm perhaps upgrade to newer, or even for film to the very sharp 47mm Digitar XL. That is simply just change of lens which will yield much sharper images, and enjoy.
I hope above helps.
Regards
Anders
