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  1. J

    New but probably wrong insight about lowlight

    Hi, @Binastro I agree, but I did not mean astro use. @Swetpat I think that this discussion has taken place before, not sure if with you or how it went. My argument was and is that the objective lens is illuminated with a certain number of photons per area unit. Thus a larger objective lens...
  2. J

    New but probably wrong insight about lowlight

    Hi, actually both. Same exit pupil but larger objective aperture means more photons per area unit. But the increases magnification helps too. Joachim
  3. J

    New but probably wrong insight about lowlight

    Hi, for astronomy aperture is king for many reasons, but the main one is that it limits resolution so you can see smaller objects. Provided that your eye's pupils still can widen enough and your skies are dark enough, you also want a wider exit pupil (and thus less magnification) with that...
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