How well do Canon EF lens adapters for Sony E-mount perform?
36760
How good are the EF-mount to E-mount adapters?
79624
Lens cleaning pen - disappointed by results, is this working right?
65989
How to improve image sharpness on Canon 700D?
11197
How do I convert lens focal length (mm) to x-times optical zoom?
79713
How can I fix a Canon lens with sand in the aperture diaphragm?
35607
What speedlites can work with the Canon non-standard hotshoe found on their low-end camera models?
85837
What's the difference between real and effective aperture?
132064
Do I need a slim or normal polarized filter for a wide angle lens?
18161
How would one use filters with the "bulb"-like shape front element lenses?
114087
Which Canon prime and teleconverters should I bring to a safari?
104812
What differences exist between third-party and official lenses for Canon APS-C DSLRs?
129196
Does crop factor still apply to a vintage film SLR lens?
19003
How will old M42 lenses work on a Nikon camera?
150759
Is there anything in medium format systems which can beat pro-level 35mm digital with fast lenses in low light?
12768
Can I use lens brand X on interchangeable lens camera brand Y?
71397
Are there any official specifications regarding the torque for camera mounts?
109652
What is the limiting factor in lens construction when it comes to f-stop values?