Focal Length Max.: 0 mm, Magnification: 0×, Telescope Type: Accessory
- Specifically designed for the 11-inch Rowe-Ackermann Schmidt Astrograph telescope
- Selective filtering of unwanted light pollution with over 90 percent transmission
- Replaces the OTA's optical window to preserve optical performance
- Made from high-quality Schott B270 glass with anti-reflective coatings
- Maintains a neutral color balance for capturing nebulae and galaxies
- Includes a custom chart of the light transmission test results