I'm interested in a Rodenstock wide angle lens for my Arca Swiss 4x5 and want to have the angle of view roughly equivalent to a 17mm on 35mm format. I assume th at to be about 107 derees in the 35mm format but which Grandagon would be equiva lent in 4x5? How much exposure fall off will there be? Probably will be necessar y to invest in a center filter to obtain even density on film. Thanks for any pr actical insight.
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