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not ratedCelestron EdgeHD .7x Focal Reducer EdgeHD 800
- The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f/10, doubling the equivalent exposure at f/10
- 4-element lens design
- Maintains similar flat-field performance as native EdgeHD optical design
- Increases field of view by 43% (double by area) to better capture wide field images
- Optimised for APS-C sized sensors, including most DSLR cameras and Nightscape CCD cameras
- Provides generous 105 mm back focus to accommodate additional accessories and a wide variety of cameras
- Compatible with EdgeHD 800 T-Adapter
