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Celestron Rowe-Ackermann Schmidt Astrograph Telescope,White 91075
$3,499.00 $5,950.95 Save 41%
Code: CI-TS-91075
MPN: 91075
UPC: 050234910750
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Celestron Rowe-Ackermann Schmidt Astrograph Telescope Product Info

The Celestron Rowe-Ackermann Schmidt Astrograph 91075 has been designed to be perfect for use with top DSLR or astronomical CCD cameras. This Astrograph Telescope from the professional astronomers at Celestron features a wide-field f/2.2 system offers two huge advantages over traditional f/10 astroimaging: better apparent tracking and shorter exposures. That means you'll create better-looking astroimages in a fraction of the time, even without the use of an autoguider. The Celestron Rowe-Ackerman Schmidt Astrograph Scope offers a full 70 mm optimized image circle to capture pinpoint stars on the largest imaging chips. Combine this large image circle with a focal length of just 620 mm and you have an instrument suitable for wide-field imaging, creating huge mosaics of the night sky, surveying, and even comet hunting. The Celestron Rowe-Ackermann Schmidt Astrograph is made with 4-element rare-earth glass for images free of false color and aberrations like coma and field curvature. The optical quality and spot size across the entire image circle is unprecedented for an astrograph in this price range—or even that of a much more expensive instrument. The design also provides minimal vignetting. Advanced features like a custom engineered linear brass focuser bearing and FeatherTouch Micro Focus Knob allow you to make the fine adjustments you need to capture the perfect shot. Meanwhile, a12V MagLev fan reduces cooldown time and provides optimal airflow through the dust filtered optical tube. Engineered as a complete astroimaging system, every component of the Celestron Rowe-Ackermann Schmidt Astrograph Scope is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or an optional imaging filter, every component of the system has been taken into careful consideration to work together seamlessly.

Celestron 91075: Rowe-Ackermann Schmidt Astrograph Telescope,White

Specifications for Celstron Astrograph - Rowe-Ackermann Schmidt:

Optical Design: Rowe-Ackermann Schmidt
Aperture: 279 mm
Focal Length: 620 mm
Focal Ratio: 2.22
Backfocus from front lens assembly: 69.26 mm
Backfocus from included camera adapters: 55 mm
Central obstruction diameter: 114 mm
Finderscope: Not included
Light Gathering Power (Compared to human eye): 1588x
Optical Coatings: StarBright XLT
Total Telescope Kit Weight: 35 lbs
Resolution (Rayleigh): 0.5 arc seconds
Resolution (Dawes): 0.41 arc seconds
Optical Tube Length: 33 in

Features of Celestron Rowe-Ackermann Schmidt Astrograph Telescope:

  • 11-inch f/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature
  • 70 mm optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors
  • Custom engineered linear brass focuser bearing reduces image shift, while dual-speed 10:1 FeatherTouch Micro Focus Knob provides the most precise focusing
  • Quiet, high-output 12V MagLev fan reduces cooldown time and blocks dust
  • Common camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR cameras

Package Contents:

  • Celestron Rowe-Ackermann Schmidt Astrograph 91075
  • 11-inch optical tube assembly
  • 42 mm T-thread camera adapter
  • 48 mm camera adapter
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