Good question, I'm curious as well. Since I'm young I didn't live in the film-days (at least not photographing) and perhaps these focal lengths were the standard lens-lengths and you had less zoomlenses?? I don't know. I do know that the focal lengths you mention are all lengths of prime lenses, so there must be a specific reason. Good question []
Originally Posted by nimblybimbly85
I guess that one is not to hard. The difference in composure between (in your lens) 15-18mm and 82-85 is really big. The 3mm difference at the wide end is totally more noticeable than the 3mm at the long end. Even zoom intervals would make it less easy to compose good and would make the zooming very long I guess.
Jan
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