本以為2吋M48規格要一萬的雙波窄頻濾鏡已很貴了,沒想到還有更貴的四波窄頻濾鏡要三萬
我還是乖乖用腳架+相機+普通光害濾鏡慢慢亂拍吧 Radian Triad Ultra Narrowband Filter 2" | OPT Telesc...OPT Triad Ultra Filter Review | My Results with a DS...Using Narrowband Filters with a Color Camera (Result...
我還是乖乖用腳架+相機+普通光害濾鏡慢慢亂拍吧 Radian Triad Ultra Narrowband Filter 2" | OPT Telesc...OPT Triad Ultra Filter Review | My Results with a DS...Using Narrowband Filters with a Color Camera (Result...