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Normal lenses are the ones with focal length roughly equal to diagonal of imaging surface (43mm on 35mm full frame, about 28mm on APS-C). Classic normal lenses are slightly longer (50...58mm on FF, 30...35 on APS-C).
1
vote
What does normal focal length really mean?
Do I have weird eyes or a misconception about normal focal length?
You have a misconception about what "normal focal length" is. But don't feel bad. … That gives me a diagonal angle of view of ~35 degrees, as opposed to the ~53 degrees for a normal focal length. …
3
votes
Accepted
Why do we not see super zoom lenses starting in wide angle?
On the marketing side of things:
Most people who shoot full frame tend to prefer lenses that do only one thing very well or a few things fairly well rather than a lens that can do a lot of things at …