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nobody

09 Aug 2012 12:48



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@ursamajor, sternchen

Despre contrast:
http://www.telescope-optics.net/mtf.htm

Si efectele:
http://www.telescope-optics.net/general_effects_of_aberrations.htm
http://www.telescope-optics.net/obstruction.htm
http://www.telescope-optics.net/telescope_central_obstruction.htm
http://www.telescope-optics.net/spider.htm