Comment by hasmanean

5 years ago

Is it possible to use software to post process those images, apply a deconvolution filter and correct the optics?

Might that enable the use of cheaper lenses?

6 comments

hasmanean

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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.

[1]: https://en.wikipedia.org/wiki/Optical_aberration

  • hasmanean  5 years ago

    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.

  • shard  5 years ago

    What if you shift the lens or sensor and capture multiple images, then process the result, would that be able to overcome chromatic abberation?

    • hasmanean  5 years ago

      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.

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