5 ms·
But they aren't, only dust on the sensor is noticeable, dust anywhere else just softens the image somewhat (unless maybe stopped all the way down with some lens
by seszett 2y ago
But they aren't, only dust on the sensor is noticeable, dust anywhere else just softens the image somewhat (unless maybe stopped all the way down with some lenses, but it would be unusual).
Edit heh, I was thinking about "lens glasses". I don't find dust on eyeglasses very noticeable unless light catches it in some particular way.
- Ylpertnodi 2y agoWorking with a few US, it took me a while to appreciate "eye-glasses", as a thing (noun). TIL "lens glasses", is also a thing. I was rather hoping context would imply what the subject matter is.
- throwway120385 2y agoAlso distinguished from "opera glasses" or "field glasses."
- gattr 2y agoSimilarly, you normally don't see any imperfections/dust specks on your cornea - but you will if you look into a very narrow (0.1-0.2 mm) beam of light (e.g., when using a telescope pushed to a very high magnification = very small exit pupil [1]). [1] https://en.wikipedia.org/wiki/Exit_pupil https://en.wikipedia.org/wiki/Exit_pupil