What limit do lens manufactures come upon first when making a wide range lens with large aperture (besides economics)?
12994
Is it physically possible to build a long zoom (17-300 mm for example) at an aperture value of around 1.4 or 1.2?
91202
Why is the aperture ring removed from new Nikon lenses?
51290
Does my crop sensor camera actually turn my lenses into a longer focal length?
129196
Does crop factor still apply to a vintage film SLR lens?
28095
Why does a bigger sensor lead to a shallower depth of field?
101736
What is the difference between Canon "L" lenses and non-L lenses?
63434
Technically, why is the out of focus area blurred more when using a bigger aperture?
94456
Why does my one lens have different exposure (t-stop) than my other lens?
7392
Why is my Nikon 50mm f/1.8 giving me an fEE error?
46184
What should I consider when purchasing a macro lens?
57920
Does it make sense to put an expensive lens on a cheap camera?
96544
Why don't lens mount adapters have the same effect as extension tubes?
24842
Does using an extender actually change the aperture of the lens?
21523
How can aperture be f/11 on a lens with an aperture range designation of 3.5-5.6?
132064
Do I need a slim or normal polarized filter for a wide angle lens?
47999
How do you find out the "sweet spot" of a lens?
129401
How can I find a compact camera with an ultra-wide lens?