OPTOLONG H-ALPHA 7nm NARROWBAND FILTER Size:36mm AZ4000 HPS mount with built-in
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Live Spec
OPTOLONG H-ALPHA 7nm NARROWBAND FILTER Size:36mm AZ4000 HPS mount with built-inThe Optolong H Alpha 7nm narrowband filter boosts the contrast of emission nebulae and supernova remnants for professional results, even under a bright sky affected by light pollution. This filter is used in combination with the OIII and SII filter to compose a narrowband colour image. The 7nm band pass is only 2% of the entire visible spectrum, increasing the signal to noise ratio and delivering high contrast images and extremely dark backgrounds.
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