Telescope C11 EDGEHD - CELESTRON
The EdgeHD is an aplanatic, flat field Schmidt-Cassegrain telescope that produces aberration-free images across a wide visual and photographic field of view. The optical system was designed to reduce more than just off-axis star coma; it also provides an astrograph-quality flat focal plane all the way to the edge of the field of view.
The Celestron XLT multi-coating enhances constrast and brightness even further, for astrophotography as well as for observation. We recommend the EdgeHD for astrophotographers and for dedicated observers who want to use a large aperture as mobile unit.
With 12.7 kg tube weight, the EdgeHD 1100 can still be used mobile. It can be held by a Celestron CGEM mount or the CGEM-DX, even for astrophotography. However, the telescope also makes a good impression in compact obervatories.
The Celestron EdgeHD Telescope advantages:
- wide and fully corrected field for astro photography - flat and free of coma.
- unrestricted visual suitability
- Main mirror lock - prevents the mirror from shifting
- Main mirror ventilation for shorter cool-down time
- Every HD telescope is Fastar compatible and can be turned into a f/2 Schmidt Camera.
- With the StarBright XLT, Celestron disposes of one of the best coatings we know. Thus offering the HD telescopes a very bright and full-contrast picture.
- Easy Collimation: guarantees ideal performance every time. Edge HD?s precision-machined mechanics and a spherical secondary mirror make collimation simple and accurate.
Feature
- Series: Fastar EdgeHD
- Optical Design: Schmidt-Cassegrain (SC)
- Diameter (mm): 279
- Focal Length (mm): 2800
- F/D Ratio: 10
- Minimum Magnification: 40x
- Maximum Magnification: 660x
- Limiting Stellar Magnitude: 14
- Light Gathering Power (compared to the human eye): 1593x
- Resolving Power - Rayleigh (arcseconds): 0.5
- Resolving Power - Dawes (arcseconds): 0.42
- Primary Mirror Type: Spherical Concave
- Primary Mirror Lock-up: Yes
- Primary Mirror Ventilation: Passive
- Secondary Mirror Type: Hyperbolic Convex
- Secondary Mirror Obstruction Diameter (mm): 95
- Secondary Mirror Obstruction (% of Primary Mirror Diameter): 34
- Field Edge Correction : HD
- Optical Coatings: StarBright XLT
- Fastar System Compatible: Yes
- Focusing System: Thumbwheel
- Focusing Rod (mm): 31.75/50.8
- Focusing Rod (mm): 31.75/50.8
- Eyepiece 1 Focal Length (mm): 23
- Eyepiece 1 Magnification: 122x
Finder: 9x50 Straight
- Optical Tube Material: Aluminum
- Dovetail Joint: Losmandy/CGE
- Optical Tube Dimensions (L x W) (mm): 610 x 312.42
- Optical Tube Weight (kg): 13
