9.25 Inch EdgeHD OTA Optical Tube - 91040-XLT
Celestron
From $2,499.00
2 stores
The Celestron EdgeHD 9.25" is a precision aplanatic Schmidt-Cassegrain optical tube designed for serious astrophotographers and visual observers seeking outstanding optical and imaging performance. Its proprietary EdgeHD optics deliver an exceptionally flat, coma-free field of view with pinpoint stars to the edge, making it ideal for deep-sky imaging with large camera sensors and high-power planetary observation. Featuring premium StarBright XLT coatings for 97.4% light transmission and mechanical refinements like mirror clutches to minimize image shift, this versatile OTA accommodates multiple focal ratios including native f/10 for deep-sky work, f/7 with an optional focal reducer, and ultra-fast f/2 for wide-field imaging with Fastar accessories.
Specifications
| Aperture | 9.25 mm |
| Weight | 20 lb |
| Focal ratio | f/10 |
| Light Transmission | 97.4% |
| Image Circle | 42 mm |
| Secondary Mirror | Removable |
| Dovetail Type | CGE (Losmandy) |
| Fastar Compatible | ✓ |
| Included Eyepiece | 23mm Luminos |
| Warranty | 2 |
| Focal length | 2350 mm |
| Tube Material | Aluminum |
| Included Eyepiece Magnification | 102 |
| Tube Length | 22 mm |
| Coating System | StarBright XLT |
| Finderscope | 9x50 |
| Optical design | Schmidt-Cassegrain |