Cloud Break Optics

Oxygen III Narrowband Filter

Oxygen III Narrowband Filter - Main image
$165 $275 In stock

Category: 濾鏡

商品詳情

OIII 8nm 窄頻濾鏡可隔離雙重電離氧的雙重發射線。在電離氫之後,這是拍攝星雲時最常見的發射線。雙重發射線發生在 495.9 和 500.7 nm。

規格參數

  • 適用於 f/4.0 或更慢系統的齊焦設計
  • 透射波前優於 0.25 波/英寸
  • 平行度:小於 30 角秒
  • 美國製造
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Standard Shipping · 美國: US$0.00

Express Shipping · 美國: US$3.99

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美國 · 退貨期限(簽收後天數): 30. 退貨方式: 郵寄退貨. 退貨運費: 賣家承擔.

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Customer Reviews (4.6 / 5 · 5 reviews)

Victoria E. ★★★★★

Installed this filter last night and the contrast on the Dumbbell Nebula was immediately better than my old dual-band setup. The 8nm bandpass really isolates the OIII signal without letting in too much sky glow.

Christopher T. ★★★★★

I was worried the 8nm bandpass would cut too much signal, but it really brings out the faint OIII detail in my nebula shots without washing out the stars. Works perfectly with my standard camera setup so far.

Penelope ★★★★★

Swapped this in on my rig last clear night and the 8nm bandwidth made a huge difference on the Veil—the doublet really pops now. Star shapes stayed tight even at f/5, which I wasn't completely expecting.