Celestron Light Pollution Imaging Filter for 8" RASA OTA

SKU: 13122

GTIN: 50234936149

Category: Telescopes

In Stock
Ready for shipment: 0 - 1 business days (DE - int. shipments may differ)

€ 499,00

incl. 19% VAT (All Non-EU Countries tax-free or with a valid EU Vat. No.) , (Paket/Parcel)

Designed Specifically for the 8" RASA
Selectively Filters Ambient Light
Dichroic Anti-Reflection Coatings
Maintains a Neutral Color Balance
Schott B270 Glass

pcs.

Celestron Light Pollution Imaging Filter for 8" RASA OTA

Designed Specifically for the 8" RASA
Selectively Filters Ambient Light
Dichroic Anti-Reflection Coatings
Maintains a Neutral Color Balance
Schott B270 Glass

Description

Purpose built for their 8" Rowe-Ackermann Schmidt Astrograph (RASA) Telescope, the Celestron Light Pollution Imaging Filter replaces the optical tube assembly's (OTA's) optical window and maintains its optical performance and neutral color balance, as no extra piece of glass is added to the fast optical system. By fitting onto the front, the light is filtered before entering the optical tube, maximizing usable light and eliminating the need for a rear filter, which can add length and weight to your astrophotography or astro-imaging rig.

The filter selectively removes unwanted light pollution—such as that from high- and low-pressure sodium-vapor streetlights, mercury-vapor streetlights, and natural airglow caused by oxygen in the atmosphere—while allowing more overall light transmission to pass through the optical path to the imaging sensor. By blocking targeted wavelengths, specific ones including 656nm H-α, 486nm H-β, 496nm and 501nm O-III, and 672nm SII emission lines from nebulae are highly transmitted, so emission nebulae won't be dimmed.

Made with Schott B270 glass, the filter's anti-reflection coatings maximize light transmission to bring out subtle color in nebulae, galaxies, and other faint deep-sky objects, while preventing star halos. Every filter is individually tested for light transmission, and a graph of test results for your specific filter is included for your reference.