Danny, you sure did start a popular thread! The only other item I think was missed, and it seems we nailed them all, great contributions... the part of the image circle you are capturing in your film is very important also. If you are at the edge of the image circle, you can find very significant sharpness fall off. In the tests done by C. Perez, many of the edges fall offs can be 50%! And his test was only testing the edge of the film, not the edge of the image circle! It gets worse! This is very significant if the best part of the lens is only delivering 50 lpmm. The other related issue I would mention is this... for some reason, some lenses have f stop "sweet spots" that resolve excellent in comparison to the other f stops. My Fuji 600C shoots very poor at f11... If you look at the tests by C. Perez linked to this home page, you will see exactly what I am talking about. We are all interested to hear what Ron Wisner says also, he sure is a good resorice for this information. Since you already bought a camera from him, you can be assured his response will be non biased. Thank you for sharing on this thread...
Bookmarks