Description
- Take beautiful images of deep-sky objects from light-polluted suburban locations with the Rowe-Ackermann Schmidt Astrograph 11 (RASA 11) using this light pollution suppression filter
- Custom designed to replace the RASA’s optical window, so you still get optimum optical performance even with the addition of the filter
- Selectively blocks unwanted light pollution while providing over 90% transmission at critical wavelengths
- Maintains a more neutral color balance than other light pollution imaging filters, perfect for imaging colorful nebulae and galaxies
- Every filter is individually tested for light transmission. A graph of test results for your specific filter is included for your reference
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 |
| Additional Information | |
| California Prop 65 |
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
|
