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dragos.n

09 Dec 2015 13:55


The Definitive Newtonian

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Un telescop newtonian construit de un amator american, Ed Turco, care mie imi pare de referinta, chiar daca pentru unii va parea dus un pic spre extrem in combaterea reflexiilor parazite.

http://www.cloudynights.com/page/articles/cat/articles/the-definitive-newtonian-reflector-r2983