Preventing condensation on lens when shooting in a cold place
49930
How do I prevent condensation on a lens when outdoors?
87470
Is it reasonable to use a ring flash that encircles the lens for non-macro (general) shots?
158181
How does the lens diameter influence photo quality?
39696
How can I take a picture through glass without glare?
6544
How do zoom lenses restrict their widest aperture at the telephoto end?
141771
What is the benefit of a wide-aperture lens if you stop it down?
7092
How do I focus in low light for long exposures?
22605
Is image stabilization a necessary feature for wide angle lenses?
48715
Photographic techniques to avoid chromatic aberration?
91323
How to keep glasses dry in the rain?
6967
How to prevent water from freezing
105343
Interference at the focus of a convex lens or a concave mirror
62822
How can lens cause consistent front or back focus?
21235
How can I remove scratches from a lens?
103257
How can I create a "rain drops on camera lense" effect with the HDRP?
132199
How to lock aperture using Reverse ring with Canon 600D?
70483
What are neutral density filters and how do I use them to create long exposures in daylight?