How different lenses affect photo quality?
34665
What image-quality characteristics make a lens good or bad?
30241
How do different aperture and shutter settings affect a photo with the same overall exposure?
145622
How do constant aperture zoom lenses work?
81006
What model does Lightroom use for lens correction?
94456
Why does my one lens have different exposure (t-stop) than my other lens?
109652
What is the limiting factor in lens construction when it comes to f-stop values?
54122
Why does using a tilt-shift lens make things look miniature?
81660
Does autofocus work better with f/2.8 lenses vs f/4 or slower?
144558
Lens with small scratches on the front element - how do they affect IQ?
58265
What happens to a lens when you turn the focus ring during AF mode?
24842
Does using an extender actually change the aperture of the lens?
150525
What is the difference between a telephoto lens and a zoom lens?
135149
How do camera body motors compare to in-lens motors for focusing?
88267
Should I upgrade my body or lens first?
68067
What makes a photo a good photo?
153578
Variable focal length for macro lenses?
157805
How do I use the different shutter speeds my camera offers?