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GunDALF

01 Mar 2023 15:26



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Mai e unul de 3nm:  https://www.teleskop-express.de/shop/product_info.php/info/p13821_Antlia-1-25-Inch-CaK-II-3-nm-Filter-for-Solar-Photography-in-Calcium-Light.html

(1nm = 10A)

L-am vazut si stiu de el, insa nu-i cunosc performantele.

Muta si tu discutia noastra unde am sugerat.