I am searching for active discussion and feedback on the performance of telephot o lens designs for 4x5. These would include, but are not limited to, the Fuji 3 00-T, Tele-Artons, Tele-Xenars, Nikkor-T, etc.
My application is a Crown Graphic and I have a maximum flange focal distance of 225mm and still able to calibrate my rangefinder. The maximum bellows draw is a bout 323mm.
I would like to hear about user experiences with telephoto lenses for sharpness and image quality specifically at portrait distances, and also at infinity.
The MTF numbers available on the Schneiders appear to indicate that telephoto le nses perform significantly less than Tessars and Plasmat formulas.
Ideally, I would like to find a telephoto such as the Fuji 300-T that would be v ery sharp, similar to the 105/2.5 Nikkor telephoto for the Nikon 35mm format.
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