Product Advisor 800.266. Optolong Optolong Filters & Accessories 1 2 3 Sort By Show Optolong City Light Supression / Light Pollution Reduction CLS Filter - 1.25' 55.00 In Stock Add to Cart Free US Shipping Optolong City Light Supression / Light Pollution Reduction CLS Filter - 2' 85. It also blocks artificial light from mercury vapor lamps, high and low pressure sodium vapor lights, and unwanted natural light caused by the emission of neutral oxygen in our atmosphere, maximizing the transmission of the main emission lines of the nebula in OIII (496nm and 500nm) and H-alpha (656nm). Blanco Encalada 3391, Capital Federal Buenos Aires, Argentina. 20 Optolong L-Pro 2' Mounted Filter SKU: OTL-LPRO-200 Filter Type: UV/IR/Luminance Filter Size: 50.8 mm (2') Filter Shape: Round Filter Insert Style: Threaded Free shipping 199.00 In Stock Add to cart As low as 6.43/Month Ask an Expert Dave B. Asking 340 for all three, including PayPal and shipping to lower 48. Ha- 7nm Sii- 6.5nm Oiii- 6.5nm Prefer to sell the set, but depending on response, may be willing to separate. It blocks light pollution, maximizes the signal from nebulae, and darkens the sky background. Filters are in excellent/like new condition and lived in my filter wheel from time of purchase until now. The 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue). The L-Ultimate is a 3nm dual band filter designed to drastically reduce the effect of light pollution. About Optolong's L-eXtreme Filter The Optolong 2 L-eXtreme filter builds on the success of the renowned L-eNhance filter to deliver an even higher degree of contrast when imaging emission nebulae, planetary nebulae, and supernovae remnants. Color Correction & Minus Violet FiltersĪgena Astro affiliate Galactic Hunter created this detailed written review of the Optolong L-Ultimate, plus a video version below:. Correctors, Focal Reducers & Flatteners.
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