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Title
Real picture of the sun with a big sunspot group. Made with Meade Schmid-Cassagrain telescope with focal lenght 2000mm, 2x #39634856
Description
Real picture of the sun with a big sunspot group. Made with Meade Schmid-Cassagrain telescope with focal lenght 2000mm, 2x teleconverter, special glass filter for the sun by Thousand Oaks and Canon 20D (togehter making equivalent focal lenght of 6400mm on film)