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Celestron EdgeHD 925 - 9.25" f/10 Aplanatic SCT on CGEM Equatorial Mount - 11081
Celestron has replaced the CGEM with the new CGEM II Equatorial Mount, and all of the packages, including the Celestron CGEM II with 9.25" EdgeHD have been updated. If we can be of further assistance, please don't hesitate to call us at 1-800-266-9590 or send us an email, and we will be happy to help you. Thank you!
Celestron CGEM EdgeHD 925 SCT On CGEM Mount
The CGEM 925 HD combines Celestron's newly designed CGEM Computerized Equatorial mount with its new EdgeHD optical system. With over 9 inches of aperture and our premium StarBright XLT coatings, the CGEM 800 HD gives you over 1000 times the light gathering power than the unaided eye. Supporting an optical tube of only 20 lbs, the CGEM 925 HD is the lightest and most portable in its class.
New Optical Design:
The Edge HD optical system combines all the compact power popularized by the SCT and combines it with an improved high definition optical system for wide field, astrograph quality images. As a visual instrument Edge HD optics delivers pinpoint images even with your widest field eyepiece. You can search for all of the Messier Catalog objects, and see hundreds of other equally interesting NGC, IC and Caldwell objects with amazing clarity. For astro imaging, the Edge HD optics produce aberration-free images across your favorite CCD or DSLR camera. All Edge HD optics are designed to produce an extremely flat focal plane precise enough to match the strict tolerances of the largest commercial ccd detectors, allowing all stars to be in tight focus to the very edge of the chip.
Some companies boast that their telescopes give diffraction limited stars in the very center of the field of view. Edge HD optics not only produce diffraction limited stars on axis, but maintain diffraction limited stars across the entire field of view of many of the most popular astro photography cameras. Even at the very edge of a DX format camera chip, the Edge HD 8" delivers star sizes of less than 1.5 arc seconds.
The Edge HD 8" optics produce a focal plane more than 3 times flatter than the standard equivalent SCT telescope with diffraction limited stars across the entire Nikon 300 or Canon 40D sensor!
Along with the newly designed optics, the Edge HD also has re-designed mechanics guaranteed to help you get the maximum performance from your instrument. Celestron's CGEM mount is the perfect fit between the Advanced Series and CGE Series. Offering the portability of the Advanced Series and the precision of the CGE.
- Mirror Locks - To hold the mirror in place and reduce image shift during imaging.
- Tube Vents - Each vent has an integrated 60 micron micro-mesh filter allowing hot air to be released from behind the primary mirror.
- Fastar Versatility - All Edge HD optical tubes are equipped with a removable secondary mirror for fast f/2 ccd imaging. Not only does imaging in the FASTAR configuration allow for exposure times that are 25 times faster than at f/10, but also yields a field of view five times wider. A perfect combination for imaging your favorite wide field objects in a fraction of the time. (FASTAR imaging requires a third party lens assembly in place of the secondary mirror).
CGEM Mount - The CGEM mount has a fresh, attractive, bold appearance and is capable of carrying Celestron's higher-end SCT optical tubes (up to 11") securely and vibration free which is ideal for both imaging and visual observing.
Ergonomic Design - CGEM was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up.
Innovation - The CGEM series has a new innovative Polar alignment procedure called All-Star (patent pending). All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM, sure to please astro imagers, is the Permanent Periodic Error Correction (PEC) which allows users to train out the worm gears periodic errors, while the mount retains the PEC recordings.
Performance - For objects near the Meridian (imaginary line passing from North to South), the CGEM will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM mount has a robust database with over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects.
CGEM 925 EdgeHD - General Features:
- 9.25" EdgeHD Optics
- CGEM Computerized Equatorial Mount
- Celestron's premium StarBright XLT coatings
- 9x50 finderscope to help accurately find objects
- Ultra sturdy 2" steel tripod with Accessory Tray
- Star diagonal provides more comfortable viewing position when observing objects that are high in the sky
CGEM 925 EdgeHD Features:
- New Aplanatic Schmidt telescope design produces aberration-free images across a wide field of view
- Mirror tension locks hold the primary mirror in place and reduce image shift
- Cooling vents allow hot air to be released from behind the primary mirror
- Fastar compatible for fast f/2 imaging
CGEM 925 EdgeHD - Computerized Mount Features:
- Proven NexStar computer control technology
- 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects
- New "All-star" Polar alignment uses any bright star for a quick and accurate Polar alignment
- Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures
- Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
- Custom database lists of all the most famous deep-sky objects by name and catalog number: the most beautiful double, triple and quadruple stars; variable star; solar systems; objects and asterisms
- Permanent programmable periodic error correction (PEC) - corrects for periodic tracking errors inherent to all worm drives
- Drive Motors - Low Cog DC Servo motor with integrated optical encoders offer smooth, quiet operation and long life. The motor armatures are skewed to minimize cogging which is required for low speed tracking.
- Internal Cable wiring for trouble-free setup and transportation
- Designated six-pin RJ-12 modular jack, ST-4 compatible guide port
- Autoguide port and auxiliary ports located on the electronic plate for long exposure astrophotography
- Double-line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of goto features
- RS-232 communication port on hand to control the telescope via a personal computer
- Includes NexRemote telescope control software, for advanced control of your telescope via computer
- Secure power plug ensures that the Mount's power source is not accidentally disconnected
- GPS compatible with optional CN16 GPS Accessory
- Precision machined 40 mm diameter steel Polar shafts supported by multiple tapered roller bearings and ball bearings.