Canon EF 50mm f/1.4 stopped focusing?
11625
Canon 50mm f1.4 no longer focuses reliably
22802
Why has my 550D camera buffer decreased?
76957
Can I damage the focus system by turning the focus ring when the lens isn't mounted?
49187
What is focal length and how does it affect my photos?
59156
What lens is needed to change the minimal focus distance length of my camera?
66456
Why am I getting black photos when I use the Manual feature on my DSLR?
109652
What is the limiting factor in lens construction when it comes to f-stop values?
7092
How do I focus in low light for long exposures?
32959
How can I get more of this macro photo in focus?
113163
Why do some lenses focus past infinity?
49623
Multi-window: prevent the out-of-focus app from pausing?
62759
Why am I allowed to turn my focusing ring beyond infinity?
42808
Simply bad focus or too big aperture?
4403
Nikkor f/1.8G 35mm or 50mm?
79713
How can I fix a Canon lens with sand in the aperture diaphragm?
143953
What does the AE/AF lock button do that half-pressing the shutter doesn't?
1611
When setting my Canon camera on a timer, how do I force it to focus at the time the shot is taken instead of when the timer is set?