Celestron

050234936149

The Celestron Light Pollution Imaging Filter is designed specifically for the 8” Rowe-Ackermann Schmidt Astrograph (RASA), helping to significantly improve image contrast by blocking light pollution and enhancing deep-sky imaging. This filter selectively filters out unwanted wavelengths from common light pollution sources like streetlights while preserving the critical wavelengths needed for capturing emission nebulae in sharp, detailed images. By fitting seamlessly into the 8" RASA's integrated filter mount, it maintains peak optical performance without introducing defects, thanks to its construction from optically flat Schott glass with anti-reflection coatings. This design minimises interference from light pollution without sacrificing image brightness or color balance, allowing you to capture clearer, more contrasted views of celestial objects. The filter works by reducing interference from specific light sources in the 400-700nm range, including sodium and mercury vapor lights, as well as natural airglow. It allows the key wavelengths emitted by deep-sky objects, such as H-α, H-β, OIII, and SII, to pass through, ensuring your nebulae and other targets remain bright and highly detailed against a darker sky background. Included with the filter is a protective plastic storage case and a unique spectral transmission graph that verifies the filter's performance. This filter is a powerful tool for any astrophotographer using the 8” RASA who wants to overcome light pollution for clearer, more detailed deep-sky images.   Full Specifications Material Schott B270 Glass Thickness 1.9mm Filter diameter 46mm Clear Aperture 43mm Coatings DichroicMulti-layer anti-reflection Housing Black anodised aluminium   About Celestron Celestron was founded by Tom Johnson whose first telescope design was a simple 6-inch reflector, built for his young son. He gradually progressed to making larger scopes in more sophisticated designs. Today, the Celestron company is an industry leader in designing and manufacturing optical equipment including telescopes (computerised and non-computerised), binoculars, spotting scopes and its accompanying accessories. Celestron's legacy spans 50 years, and has grown to enjoy recognition from amateurs to serious astronomers globally. The company seeks to remain innovative by growing its product offerings, while supporting science education around the world. Product Code: 93614