Orion Atlas 8 EQ-G Reflector w/ GoTo Controller
If your interest in amateur astronomy runs the gamut from observing to astro-imaging, you need an instrument that's up to the task — like the Orion Atlas 8 EQ-G. It's an 8" reflector with precision parabolic mirror optics, perfect for visual and photographic forays into deep space.
The tube assembly of the Orion Atlas 8 EQ-G features an upgraded 2" Crayford-style focuser with a 1.25" adapter, allowing use of either 2" or 1.25" eyepieces and accessories. You also get an 8x40 achromatic finder scope and a 26mm (38.5x) Sirius Plossl eyepiece (1.25"). Large collimation knobs on the high-ventilation rear cell and a center mark on the primary mirror itself make optical alignment easy and precise.
At the heart of the Orion Atlas 8 EQ-G is the 203mm parabolic primary mirror with a focal length of 1000mm (f/4.9) and center-marked for easier, more accurate collimation. The 1000mm focal length is excellent for visually studying a wide variety of celestial objects, from planets to distant galaxies, and the f/4.9 focal ratio is plenty fast for deep-space CCD or film photography. The mount has backlash compensation in both axes and programmable periodic error correction (PEC), which provides the precision required for astrophotographic guiding, either manually or with an autoguider via the autoguider port in the mount's drive panel.
Speaking of the mount, the beefy Orion Atlas EQ-G provides incredibly stable support, thanks to its solid construction and 2"-diameter stainless steel legs, which adjust in height. Internal DC stepper motors offer nine slew rates ranging from 2x to 800x sidereal and three tracking rates: sidereal, lunar, and solar. You'll slew from one object to the next at a clip of up to 3.4 degrees per second. And astrophotographers are raving about the low periodic tracking error.
With this GoTo version of the Atlas 8 EQ-G, you can visit any of 13,000+ celestial objects with pushbutton ease. The hand controller has a two-line, backlit LCD screen and a red-illuminated keypad. An RS-232 serial port permits connection to a personal computer for control of the telescope via astronomy software such as Starry Night Pro. Navigating the menu buttons is nicely intuitive and takes little time to master. The database includes the complete Messier, NGC, and IC catalogs of clusters, nebulas, and galaxies; eight planets; 100 named stars; and 25 user-defined objects.
The Atlas EQ-G mount requires an external 12-volt DC power supply, sold separately. One-year limited warranty.
For owners of the Atlas EQ-G GoTo Mount whose version of the GoTo hand controller is 3.0 or greater, the GoTo hand controller's firmware can be updated over the internet.
Updating the GoTo Hand Controller's Firmware:
From version 3.0 and up, the GoTo hand controller's firmware can be updated over the internet with the link to the left.
- GoTo hand controller version 3.0 or greater
- Windows95 or later
- An available RS-232 COM port on the PC
- Computer interface cable (supplied)
- DC power supply (7.5V to 15V @ 100mA or greater output with 2.1mm tip positive plug)
Orion Product Number: 24732
Drop-Ship Policy Note: To expedite your order, this telescope (or mount) will be drop-shipped directly from Orion's warehouse to you and availability will be based on Orion's inventory levels. OPT will contact you immediately if there are any delays on shipment and will provide an estimated lead-time. If the product is not readily available, you will have the option to keep the order open with a 10% deposit. Additional Orion items may be drop-shipped along with the telescope (or mount), or shipped directly from our own OPT stock. Non-Orion items will be shipped directly from the OPT warehouse. As a courtesy, OPT will cover all costs for splitting orders and separate shipments.
If a return issue should arise with an Orion drop-ship item, please note that OPT will be required to issue a minimum 10% restocking fee for its return to Orion. With this exception, all other conditions of the OPT return policy apply. Please feel free to call us at 1-800-483-6287or e-mail us if you have any questions on Orion Drop-Ship product availability or on this policy. We're here to serve you!
- Additional Information
SKU OR-24732 Manufacturer Orion Telescope Series Orion Atlas EQ-G Optical Design Newtonian Reflector Mount Type Equatorial - GoTo Warranty 1 Year Warranty Telescope Aperture 8" Telescope Focal Length 1000mm Telescope Focal Ratio f/4.9 Highest Useful Magnification 300x Limiting Stellar Magnitude 14.2 Optical Coatings Aluminum Tube Color or Finish Orion Grey Pearl OTA Mount Type Vixen-Style Dovetail Optical Tube Outer Diameter Not provided by manufacturer Length of Optical Tube 38" Optical Tube Weight 16.5 lbs. Mount Weight 54 lbs. Total Telescope Weight 95 lbs. Objects in Database 42,900 Objects Alignment Procedure 1-Star Alignment, 2-Star Alignment Tripod Type Included Adjustable with Steel Legs CD ROMs Included Starry Night SE Eyepiece(s) Included 25mm Hand Controller Included? Yes Diagonal Included? No - Not Required Dew Shield Included? No, Not Necessary Power Adapter Included DC Cigarette Lighter Adapter Counterweights Included (3) 11 lbs. Finder Included 8 x 40 Optical Finder
- Included Items
- Optical Tube Assembly
- 26mm Sirius Plossl eyepiece (1.25")
- 2" - 1.25" eyepiece adapter
- Equatorial mount
- Computerized hand controller
- 8x40 finder scope
- Dovetail finder scope base
- Collimation cap
- Camera adapter
- Tube rings
- Tube ring mounting plate
- 11 lb counterweights
- Counterweight shaft
- Tripod accessory tray
- Dust cap
- 12V DC power cable
- GoTo hand controller cable for Sirius EQ-G
- GoTo hand controller cable for Atlas EQ-G
- GoTo hand controller bracket
- Computer interface cable (RS-232)
- Wire clip
- Starry Night special edition software
- Questions & Answers
Product QuestionsI am interested in astrophotography. Am I correct in assuming I can use (with appropriate T-ring and adapter) my Canon 5D mkii with this telescope? I ask because a friend of mine had a reflector that would not focus the image on the DSLR sensor.Question by: RussW on Mar 23, 2014 11:32:02 AMWhile you will be able to physically connect your 5D Mk II to this telescope with a T ring, and adapter, the coma will compromise the image without some sort of correcting lens. Most coma correctors only work for APS-C sized sensors (7D, Rebels, etc), but this may work http://www.optcorp.com/ba-rcc-i-rowe-coma-corrector.html. You will need to remove the stop thread flange and add some spacers to make up part of the 91.5mm back focus, but customer's have had good luck with this on 8-10" Newtonians.Answer by: Chris (Admin) on Mar 24, 2014 11:35:33 AM
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