Why does my Nikon DX AF-S Nikkor 55-200mm seem to be more zoomed in at 200mm than my AF-S Nikkor 18-200mm?
71754
Why do two zoom lenses set to 200mm on the same camera produce different fields of view?
94456
Why does my one lens have different exposure (t-stop) than my other lens?
139331
Why doesn't exposure change when changing focal length?
1797
Do ND filters increase the dynamic range that a camera can 'see'?
30952
What is the difference between EF and EF-S lenses?
124074
Does stacking more lens filters decrease overall image quality?
24842
Does using an extender actually change the aperture of the lens?
73401
Why is my camera limited to a shutter speed of 1/250th when the flash is up?
113163
Why do some lenses focus past infinity?
21523
How can aperture be f/11 on a lens with an aperture range designation of 3.5-5.6?
93222
How does sensor size affect the brightness of an image given the same field of view and aperture?
140954
what's the relation between sensor size and image quality (noise, dynamic range)?
145622
How do constant aperture zoom lenses work?
46343
When changing between manual and auto focus, should I change the setting on both the body and the lens?
72405
Is it better to upgrade Canon 18-55mm IS kit lens to the 18-200mm, or complement with 55-250mm?
36265
Why do I get blurry pictures when I take a lens attachment off?
40865
What should I do when I have lenses with different filter thread sizes?