How do apertures which seem too large to physically fit work?
69119
Is the size of the entrance pupil the same as the size of the effective aperture?
141771
What is the benefit of a wide-aperture lens if you stop it down?
57443
Confusion With How Dimensions Work
129284
Why no zoom lenses with a maximum aperture wider than f/2.8?
11130
Is it (theoretically) physically possible to project an image into thin air?
52967
Can screw-on macro lenses produce decent results?
14565
How does background blur (bokeh) relate to sensor size?
74363
Why is the bokeh shaped like the aperture?
7664
Why are effective pixels greater than the actual resolution?
85095
Selecting optical size?
26420
Possible to lock focal length on zoom lens? (SELP1650)
5000
Do smaller apertures provide more depth of field past the diffraction limit, even if peak sharpness suffers?
4
What is the best way to improve Aperture 3 peformance on an iMac?
96544
Why don't lens mount adapters have the same effect as extension tubes?
109652
What is the limiting factor in lens construction when it comes to f-stop values?
63664
Regularly spaced holes in a cylinder
60380
Take a look on a website with specified viewport size, that is bigger than physical size?