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S-II 12nm 濾鏡 1.25"

S-II 12nm 濾鏡 1.25"

CN¥580.00
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Description

Optolong。1.25"  濾鏡S-II 12nm 窄帶濾鏡,深空攝影,發射星雲,CCD 專用

目鏡端接口: 1.25"
用途: 是一款只允许电离的硫离子 (672nm) 通过的天文摄影窄带滤镜,可以有效的截止人造光钠(Na)灯和汞(Hg)灯及其它因素的干扰,从而有效的增加目标天体与天空背景的对比度,再现星云的丰富细节。搭配 OⅢ 通道照片和 H-Alpha 通道照片进行合成效果更佳--即哈勃色
特色: 採用德國肖特優質光學玻璃,能夠有效的抑制光暈 (Halo) 出現
螺紋: N/A
厚度/重量: N/A
透光率: 允許發射譜線 672nm 波段透過

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