What is the difference between these lenses?
43047
Why do some lenses cost 10 times as much when the specs are very close?
96544
Why don't lens mount adapters have the same effect as extension tubes?
46343
When changing between manual and auto focus, should I change the setting on both the body and the lens?
41048
If I have a 18-55mm lens, is there a point in buying a 35mm prime lens?
52967
Can screw-on macro lenses produce decent results?
96984
Is it lenses which make your photographs, not camera bodies?
19213
What do all those cryptic number and letter codes in a lens name mean?
17851
How does using a lens with some focal length on a full frame camera differ from using a lens with "equivalent" focal lens on a crop camera?
109652
What is the limiting factor in lens construction when it comes to f-stop values?
107952
Do different lenses affect noise level?
136336
How to choose a lens for my first DSLR?
40865
What should I do when I have lenses with different filter thread sizes?
37422
Since it's not "focal length", what is the term for the distance at which things are in focus?
101736
What is the difference between Canon "L" lenses and non-L lenses?
88406
What does different focal length offer me?
144558
Lens with small scratches on the front element - how do they affect IQ?
59156
What lens is needed to change the minimal focus distance length of my camera?