親子觀星會

討論區 => 砲管集中營 => 主題作者是: peter 於 2024-01-31 13:56:06



主題: nikon 200mm f2 減焦 F1.2 ?
作者: peter2024-01-31 13:56:06
200mm f/2.0 lens used afocally with 45mm Celestron Plossl and NVD Micro to provide a TFOV of 7 degrees at f/1.2

https://www.cloudynights.com/gallery/image/133410-pxl-20211013-220116332/