Explore Scientific 1.25インチ OIII星雲フィルター - 310205

Was tired of wasting time framing targets that weren't really there, and this filter cuts through the sky glow like a scalpel. The two oxygen lines it passes are incredibly sharp, making the Veil Nebula pop out vividly against a black background. Just a solid piece of glass that does exactly what it

Swapped in the OIII filter on a moonless night and the Veil Nebula popped out clearly through my 4-inch refractor. It blocks everything but those two oxygen lines, so the background sky goes nearly black and the detail is incredible.

I paired this filter with my 8-inch Dobsonian, and the Veil Nebula went from a faint smudge to a detailed, twisted structure. It’s amazing how it isolates just those two oxygen wavelengths for such a crisp view.