Comment by colincooke
5 years ago
Unfortunately you can't recover information that was never captured, which is the main issue with cheaper lenses. They tend to have more abberations [1], which prevents capturing high quality information.
5 years ago
Unfortunately you can't recover information that was never captured, which is the main issue with cheaper lenses. They tend to have more abberations [1], which prevents capturing high quality information.
Do all optical aberrations go away if you use a curved image plane?
And if you correct aberrations in software then you can use the cheapest lenses (a single element objective and eyepiece) without having to correct for these aberrations in glass.
What if you shift the lens or sensor and capture multiple images, then process the result, would that be able to overcome chromatic abberation?
Well if you use narrowband colour filters (or light up the sample using narrowband LEDs) and refocus every time you switch, then you could eliminate chromatic aberration completely.
You would have to slightly rescale the image for each colour but that is not impossible.
Sounds like a tradeoff between processing time and image clarity / cost, same as computational photography in smartphones. That looks like a win to me, hopefully we will see innovations in this area so cheap microscopes with great resolving power becomes available to the masses.
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