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  • Orion 8296 10-Inch f/3.9 Newtonian Astrograph Reflector Telescope
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Orion 8296 10-Inch f/3.9 Newtonian Astrograph Reflector Telescope

by Orion
| 6 answered questions

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  • This affordable 10" astrograph is ideal for capturing stunning deep-sky astro-images
  • Fast f/3.9 focal ratio provides swift wide-field imaging performance
  • Enhanced reflectivity aluminum coatings on primary and secondary mirror provide 94% reflectivity
  • Sturdy 2" dual-speed low-profile Crayford focuser permits ultra-fine focus with 11:1 ratio
  • Extended tube length of 7.5" in front of the focuser blocks peripheral light, optimizing image contrast
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Product Details

  • Shipping Weight: 34.2 pounds
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B004GK511I
  • Item model number: 8296
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (6 customer reviews)
  • Amazon Best Sellers Rank: #17,228 in Camera & Photo (See Top 100 in Camera & Photo)
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: November 1, 2003

Product Description

Product Description

Our largest reflector optimized for astro-imaging boasts 10-inch parabolic primary optics with a very fast f/3.9 focal ratio for exceptional wide-field, deep-space imaging performance. Even faint galaxies and nebulas exhibit stunning detail with limited exposure time when photographed through this large-aperture astrograph with a CCD imager or DSLR camera. You'll get incredibly bright, crisp images that will make apochromatic refractor aficionados green with envy - and you'll have more green in your wallet thanks to this telescope's more-affordable Newtonian design. Both the 10-inch (254mm) primary and secondary mirror feature enhanced reflectivity (94%) aluminization for bright, contrast-rich images. The 82mm minor axis secondary mirror provides excellent full-field illumination with modern CCD imagers and DSLR cameras, with less than 8% light drop-off at the edge of APS-C sized sensors. The adjustable 4-vane secondary mirror holder features very thin, 1mm thick spider vanes to minimize diffraction effects in images. A center mark on the primary mirror and three easy-grip collimation knobs make optical alignment easy and precise. Extended tube length of 7.5-inches in front of the focuser blocks intrusion of off-axis light, ensuring optimum image contrast.

From the Manufacturer

This affordable 10" astrograph is ideal for capturing stunning deep-sky astro-images. Fast f/3.9 focal ratio provides swift wide-field imaging performance. Enhanced reflectivity aluminum coatings on primary and secondary mirror provide 94% reflectivity. Sturdy 2" dual-speed low-profile Crayford focuser permits ultra-fine focus with 11:1 ratio. Extended tube length of 7.5" in front of the focuser blocks peripheral light, optimizing image contrast

Customer Questions & Answers

Customer Reviews

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Most Helpful Customer Reviews

5 of 5 people found the following review helpful By charlescdavis on May 14, 2013
Verified Purchase
The scope is big! but not too heavy for an average user. Planets, deep space you name it and it looks amazing with this scope.

I have done several images and they come out amazing (get a coma corrector!) Alignment is easy with the rear knobs and very quick.

If you will be stargazing dont forget to bring the included eyepiece adapter or you will not be able to reach focus.

Make sure your mount can support the 40(+-)lbs.

The only con is the finder scope...it is not image corrected or illuminated so I switched it out. Everything else is Amazing!!!!!
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3 of 3 people found the following review helpful By PilotMan on January 10, 2013
Verified Purchase
I have been using this telescope for about 9 months and can recommend it. The 10" mirror collects a lot of light making camera exposure times lower, and results brighter. I use it with a canon eos d1 and have good results. The focuses is precise, but needed some adjustments to optimize movement. It is slightly heavy, so be strong or beware. With a good auto tracking mount, it produces impressive results. I got great results on m51 with 3 exposures of 30 seconds, stacked and photoshop optimized. Value is unparalleled for astrophotos. Enjoy!
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1 of 1 people found the following review helpful By VE304245 Paúl Calderón on February 20, 2014
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Excellent telescope, high performance for low price, achieved visualize in great detail the more diffuse deep sky objects, recommended for astrophotography.
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