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A comment on Hubble takes gigantic image of the Triangulum Galaxy. Parent comment

Re:Hubble takes gigantic image of the Triangulum Galaxy by sp332 on Thursday January 10, 2019 @10:33AM (#18874517)
No, because a pixel is not a point. Even if not-perfect optics blur the point a bit, it can still be one pixel or less. Ideal optics might be able to focus the light much smaller than one pixel, but that won't change the resulting image because the pixel sensor will pick up the same amount of light.
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Re:Hubble takes gigantic image of the Triangulum Galaxy by mikhailfranco on Thursday January 10, 2019 @02:18PM (#18877046)
"A Pixel Is Not A Little Square"

http://alvyray.com/Memos/CG/Microsoft/6_pixel.pdf

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Re:Hubble takes gigantic image of the Triangulum Galaxy by Sharlin on Thursday January 10, 2019 @05:56PM (#18879248)
And elementary photosensitive units (whether silver halide grains on photographic film, individual sensor elements in a CMOS or CCD image sensor, or photoreceptive cells in a mammalian retina) are not points. They have a nonzero area and turn photons into signal irrespective of where they hit. That article, while very informative, is not relevant. Sensels are not pixels.
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