Why don't lens manufacters just label their lenses in 35mm equivalent terms?
101960
Why are crop lenses indicated with focal lengths they don't have?
129284
Why no zoom lenses with a maximum aperture wider than f/2.8?
86838
What do the red values mean on the distance scale of a lens?
50452
Did film photography have lens correction counterparts?
58821
How can the aperture value written in Exif be larger than the nominal limit of the lens?
139331
Why doesn't exposure change when changing focal length?
152115
Can I convert binocular zoom to equivalent lens focal length?
96984
Is it lenses which make your photographs, not camera bodies?
133641
How do DSLRs figure out what aperture to select in P mode?
57370
What are the limitations of a typical kit lens as a general purpose lens?
52967
Can screw-on macro lenses produce decent results?
52691
Sign convention in optics
138067
Why are 50mm Lenses Cheaper?
103361
Why do professional print houses use gamut-limiting CMYK?
20086
Why is the amount of light a lens lets in called the 'lens speed'?
129196
Does crop factor still apply to a vintage film SLR lens?
60859
Why are some lens hoods petal shaped and others not?