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 17 of 24 
Orion Telescopes
Advanced
Orion Sirius ED80 EQ-G Computerized GoTo Refractor Telescope
£ 1,477.99
If purchased separately £ 1,640.94
You Save £ 162.95
 
Payment Options
Expected Ship Date: 15/01/2020

  • The Orion ED80 refractor's short focal length and superb apochromatic optics make it a great telescope for astrophotography and visual use
  • The included Sirius EQ-G GoTo equatorial telescope mount and tripod supports the ED80 refractor with strength to spare for accomodation of additional astrophotography gear
  • The ED80 sports a multi-coated 80mm objective lens doublet of 600mm focal length (f/7.5) made with extra-low dispersion FPL-53 ED glass for great visual and astrophotographic performance
  • The state-of-the-art Sirius EQ-G GoTo mount contains a computerized database of over 42,000 celestial objects to explore and photograph
  • Includes 8x40 finder scope for easy aiming, 25mm Sirius Plossl 1.25" eyepiece, 1.25" prism star diagonal, telescope tube rings, Starry Night astronomy software, and more


Learn more
Item #  24281u

As numerous customers have shown, the popular Orion ED80 refractor's short focal length and superb apochromatic optics make it a great telescope for astrophotography. And now we've coupled it with a state-of-the-art equatorial mount that provides the stability and precision control needed to capture beautiful deep-sky images.

The Orion Sirius ED80 EQ-G GoTo Refractor Telescope sports a multi-coated 80mm objective lens doublet of 600mm focal length (f/7.5). One lens element is crafted from extra-low dispersion, or "ED" optical glass. This high-grade glass greatly reduces the chromatic aberration that causes color fringing around bright objects and loss of sharpness in standard achromats.

The ED80 refractor telescope's 2" Crayford focuser accepts both 2" and 1.25" accessories and has a drawtube tensioning knob for securing your camera position when imaging and your telescope eyepiece/diagonal assembly when observing.

With the Sirius EQ-G mount and GoTo hand controller you'll experience effortless computerized navigation to over 42,000 celestial objects with a few button pushes on the illuminated hand controller. Internal dual-axis stepper motors move the telescope at up to 3.4 per second right to your target object, tracking it while you observe or photograph it. Periodic error correction (PEC), a port for an autoguider, and an illuminated polar axis scope for accurate polar aligning are all standard features, designed to ensure successful astroimaging adventures!

The tripod features extendable 1.75"-diameter stainless steel legs and a cast-metal spreader plate/accessory tray for unflinching stability. To power the mount you will need a 12-volt DC battery or an AC-to-DC adapter for use of 110-volt power.

For owners of the Sirius 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.

Warranty

Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at sales-eu@telescope.com

Product Support
Visit our product support section for instruction manuals and more
  • Best for viewing
    Brighter deep sky
  • Best for imaging
    Deep sky
  • User level
    Advanced
  • Optical design
    Refractor
  • Optical diameter
    80mm
  • Focal length
    600mm
  • Focal ratio
    f/7.5
  • Coatings
    Fully multi-coated
  • Optics type
    Air-spaced doublet
  • Glass material
    Extra low dispersion FPL-53
  • Eyepieces
    Sirius Plossl 25.0mm (1.25")
  • Magnification with included eyepieces
    24x
  • Resolving power
    1.44arc*sec
  • Lowest useful magnification
    11x
  • Highest useful magnification
    160x
  • Highest theoretical magnification
    160x
  • Limiting stellar magnitude
    12.2
  • Optical quality
    Diffraction limited
  • Finder scope
    8x40
  • Focuser
    2" Crayford
  • Diagonal degrees
    1.25" 90° Prism Star
  • Mount type
    Equatorial
  • Astro-imaging capability
    Lunar, planetary & long exposure
  • Dovetail bar system
    Yes
  • Computerized compatibility
    Go-To included
  • Number of objects in database
    42,000+
  • Tracking rates
    Sidereal, Solar and Lunar
  • Motor type
    Microstep driven 1.8°stepper motors
  • Bearing material
    Sealed ball bearings
  • Power requirement
    12-volt DC - 2A (tip positive)
  • PEC
    Yes
  • GPS
    Sold separately
  • Backlash compensation
    Yes
  • Latitude range
    20-66
  • Setting circles
    Yes
  • Polar-axis scope
    Included
  • Counterweights
    One 5kg
  • Available ports
    RS-232, autoguider
  • Tube material
    Aluminum
  • Tripod material
    Steel
  • Tripod leg diameter
    44.45mm
  • Counterweight bar length
    20cm
  • Diameter of counterweight shaft
    18mm
  • Height range of mount
    1.07m - 1.40m
  • Length of optical tube
    59.7cm
  • Weight, optical tube
    2.6kg
  • Weight, mount/tripod
    14.5kg
  • Weight, fully assembled
    22.5kg
  • Additional included accessories
    One element ED glass in apochromatic primary lens, Crayford focuser, Machined aluminum lens cell
  • Other features
    GoTo hand controller
  • Warranty
    One year

Orioin Sirius 80 ED EQ-G Refractor w/GoTo Controller optical tube assembly
25mm Orion Sirius Plossl telescope eyepiece (1.25")
Prism Star Diagonal (1.25")
2" - 1.25" telescope eyepiece adapter
Tripod
Equatorial GoTo mount
Computerized hand controller
8x40 finder scope
Tube Rings
Tube ring mounting plate
11 lb counterweight
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
Wire clip
Starry Night special edition software digital download insert

Orders received by 5pm UTC for in-stock items ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

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