Getting a sharp focus on a 50mm when the subject is at 5m - 10m
9833
Why are my photos not crisp?
7818
How can I get dramatic shallow DOF with a kit lens?
113163
Why do some lenses focus past infinity?
148895
Why can't I turn the focus ring on my Vivitar 100-300mm far enough to get infinity focus?
113839
How can I visualize or simulate the effect of different focal lengths?
85095
Selecting optical size?
46343
When changing between manual and auto focus, should I change the setting on both the body and the lens?
52967
Can screw-on macro lenses produce decent results?
48863
Do I really need a fast 50mm lens?
5000
Do smaller apertures provide more depth of field past the diffraction limit, even if peak sharpness suffers?
10820
What is the formula for percent of frame filled at a specific distance and focal length?
47999
How do you find out the "sweet spot" of a lens?
83701
What settings should I be using to shoot "Supermoon"?
63434
Technically, why is the out of focus area blurred more when using a bigger aperture?
158181
How does the lens diameter influence photo quality?
88406
What does different focal length offer me?
65989
How to improve image sharpness on Canon 700D?