On a Micro 4/3s camera with a Speedbooster adapter, does a 50mm lens still effectively become a 100mm lens?
15644
What is crop factor and how does it relate to focal length?
49187
What is focal length and how does it affect my photos?
65233
Which mode should I use on my camera?
3867
is it normal to get significant lens flare with a 50mm f/1.8 prime lens?
111238
Can you extend a Canon Rebel T5's exposure length?
153578
Variable focal length for macro lenses?
75927
Can I use old Pentax lenses on newer Pentax DSLRs?
71754
Why do two zoom lenses set to 200mm on the same camera produce different fields of view?
39233
Would it be better to use a 35mm prime instead of a 50mm prime on a cropped sensor body?
2224
What's the difference between using a 50mm f/1.8G and a 50mm f/1.8D with a Nikon D80?
30788
Is the camera sensor or the lens the limit to resolution?
52967
Can screw-on macro lenses produce decent results?
81660
Does autofocus work better with f/2.8 lenses vs f/4 or slower?
10570
Does sensor size affect lens distortion?
58265
What happens to a lens when you turn the focus ring during AF mode?
150402
Is it normal for focal length to change while focusing?
14565
How does background blur (bokeh) relate to sensor size?