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afilip

14 Iul 2016 11:37



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Folosesc urmatorul field flattener https://www.firstlightoptics.com/reducersflatteners/skywatcher-field-flattener.html

Am mai vazut acuma pe teleskop express adaptor tot de 2.5mm trecut ca zero effective length. 
http://www.teleskop-express.de/shop/product_info.php/language/en/info/p2839_TS-Adaptor-with-T2-female-thread-and-M48--2--filter-thread--male---zero-effective-.html

Expresia aceea zero effective length chiar inseamna ceva acolo ?