Enhance your astrophotography experience in urban settings with the Celestron Light Pollution Imaging Filter, specially designed for the Rowe-Ackermann Schmidt Astrograph 11 (RASA 11). This filter effectively combats the challenges posed by light pollution, allowing you to capture stunning deep-sky images even from light-polluted suburban areas. It is precisely engineered to replace the RASA’s optical window, ensuring that the telescope's optical performance remains top-notch even with the filter in place.

This filter excels in selectively blocking unwanted light pollution, ensuring over 90% light transmission at crucial wavelengths. Unlike many other light pollution imaging filters, it maintains a more neutral color balance, which is ideal for capturing the vibrant hues of nebulae and galaxies.

The Celestron Light Pollution Imaging Filter for RASA 11 is constructed with a machined aluminum housing and high-quality Schott B270 glass. Its 68 mm clear aperture is generously sized to accommodate large camera sensors, making it a versatile addition to your astrophotography gear.

The filter is specifically designed to remove light pollution while preserving the brightness and quality of your images. Light pollution, commonly caused by streetlights and other ambient lighting, can significantly degrade the quality of images taken with a color camera. Standard light pollution filters often reduce the overall light throughput, leading to dimmer images and skewed color balance. In contrast, the Celestron filter removes unwanted light pollution while keeping the useful spectrum intact, retaining over 90% of the light captured by your telescope.

The multiple layers of dielectric coatings are specially formulated to provide the desired transmission levels, while anti-reflective coatings reduce star halos and internal reflections. The result is images that accurately reflect the subtle colors and details of galaxies and other faint deep sky objects.

Each Celestron Light Pollution Imaging Filter undergoes individual testing to ensure quality. Included with the filter is a clear plastic case for protection when not in use, and a graph detailing the specific light transmission spectrum of your filter, providing a personalized reference for your astrophotography endeavors.

Specifications

GENERAL
Glass thickness:	2.1mm (0.08")
Filter diameter:	72mm (2.83")
Clear aperture:	68mm (2.67")
Coatings:	Hard Coated dielectric and multi-layer antireflection coatings
Filter glass:	Schott B270
Housing:	Andodized aluminum
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Celestron Light Pollution Imaging Filter, RASA 11

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