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Sensor dust on moon shots?
Jan 25, 2019 10:02:41 #
Shoeless_Photographer wrote:
Take another shot with the same exposure settings (longer time if need be) with the lens cap on. See if the spots appear again. If so, are they in the same position? If yes, you've got hot pixels in your sensor. Nothing to do but clone them out in post.
Or to use SW that removes hot pixels.
Jan 27, 2019 02:57:13 #
Ed Greding
Loc: Texas
Wayne, certain limited areas of the lunar surface reflect light much better then others, and a few very limited area are exceptional (often the floors of certain craters); I presume this to be due to the composition of the material present, and to the angel of incidence of the light reaching these areas. Your photos are taken at low magnification, hence these areas will appear small but bright when compared to the remainder of the moon's surface---whether in eclipse or not. My suggestion (if you are not a frequent moon-gazer via telescope) is to get a lunar map and note especially the positions of the craters Eratosthenes, Copernicus, Kepler and Aristarchus relative to other features, and to each other. Then compare to your photos. I think you will find that the points of light that you have noted correspond to the positions of the craters I have named. By the way, I think your photos are fine; mine are so bad I don't want to show them.--Ed Greding
Jan 27, 2019 03:12:35 #
Ed Greding
Loc: Texas
Note to elmerviking, wbchinook and other fellow hedgehogs: I believe the main spot on your photos and on Wayne's to be nothing other than the crater Aristarchus, which usually stands out even when the Moon is not in eclipse---except, of course, in the lunar night. ---Ed Greding
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