Hello,
the best working aperture of the Rodenstock Apo-Grandagon 4.5/55mm is f 8-11.
I understand that the lens is at its best within this range of f-stops and I am aware that f 11 will already give a large amount of DOF on 6x9 cm film.
However, what is the performance of this lens at f 16 and f 22? Would I see a noticable degradation of the sharpness and/or contrast due to diffraction or does it still deliver almost the same excellent image quality?
Are you using this lens at f 22? What are your experiences?
Thanks for your help!
Kind regards
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