Why do my 50mm APS-C and 50mm FF lenses have the same angle-of-view on my APS-C camera?
75334
Why do Full Frame lenses and crop body lenses exhibit the same crop factor when used on a crop body camera?
94456
Why does my one lens have different exposure (t-stop) than my other lens?
138067
Why are 50mm Lenses Cheaper?
80219
What is the relationship between field of view and focal length for fisheye?
133641
How do DSLRs figure out what aperture to select in P mode?
22605
Is image stabilization a necessary feature for wide angle lenses?
21523
How can aperture be f/11 on a lens with an aperture range designation of 3.5-5.6?
90109
Are cropped images from a full-frame sensor equal quality to full APS-C images despite the lower resolution?
77417
Why do I get "F - -" on my Nikon camera?
11051
Is there a difference between taking a far shot on a 50mm lens and a close shot on a 35mm lens?
92841
Does having the AF points bunched up in the middle make a big difference?
145622
How do constant aperture zoom lenses work?
100631
Is an EF 50mm f/1.4 the same as 50mm with an EF-S lens on a Canon 550D?
60568
How can I accurately focus manually on an APS-C DSLR?
94271
What is the reference plane used when the minimum focus distance is measured?
17488
Why is FF sharper than crop body for the same framing of the same object?
113163
Why do some lenses focus past infinity?