Hi all I already have the 90 I was wondering if there was enough difference in FL to also have the 75 or should I wait for a 65. I can get the 75 for a pretty good deal seems like the later one. Black barrel in copal shutter. Thanks for any feedback
Any discussion is really pretty pointless without knowing the application. Consult the tables giving the angle of view for each of the focal lengths. Then do a little geometry to figure if that angle of view will accommodate what you want to photograph. There's your answer.