Optician 发表于 2025-3-21 18:49:16
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Der vordere anatomische Hüftzugang (AHA)ond for a modern camera, hand-held. As you might expect, ten times more light arrives on the film if the shutter is open for 1/100 second than it does if it is open only for 1/1000 second. Obviously, this is not the same way that the eye works.negotiable 发表于 2025-3-23 07:50:01
https://doi.org/10.1007/978-1-4471-3765-8Telescopes; asteroid; astronomy; deep-sky; instruments; moon; photography; planet; solar system; star; stars; s