What causes the blur when my fingers are almost touching?
5457
Why do shadows from the sun join each other when near enough?
6871
Is it possible to blur an image in such way that a person with sight problems could see it sharp?
63434
Technically, why is the out of focus area blurred more when using a bigger aperture?
83462
What causes pixelation, blurred graphics on a web banner?
70725
Material Opacity in viewport?
121416
Is there a way to detect if an image is blurry?
42974
Strange distortions in my background on desktop
57608
Approaching speed of light: why do objects appear further away in front of me?
65877
What is "veiling glare"? How does it affect my photos, and how can I avoid it?
158496
Sharp short unwanted edges in tikz
104455
Partial or entire Image Blurring in TikZ?
78324
What causes the shadow at the bottom of this photograph?
42808
Simply bad focus or too big aperture?
144162
Compositor Problems when working with alpha over and blur nodes
149797
What determines the sharpness of a shadow?
125765
screen keeps jerking and there are automatic touches
157311
Window blurring or smearing down