About the Orion EON 130mm ED Triplet Apochromatic Refractor Telescope OTA...
For the dedicated visual observer or imager seeking a top-of-the-line Orion Telescope to advance their capabilities and enjoyment in the hobby, the Orion EON 130mm Triplet ED Apochromatic Refractor Telescope should be on your short list of candidates. This exquisite telescope features premium optical performance and a high-end fit and finish, but at a price that''s thousands less than that of comparably sized APOs from other manufacturers. From front to back, this is truly an awe-inspiring Orion Telescope.
At the front end, you''ll find a three-element, air-spaced lens assembly of 130mm (5.1") aperture, with one element crafted from FPL-51 ED glass for superb color correction and sharpness. The 910mm focal length makes the EON 130mm Triplet Orion Telescope a wonderfully versatile telescope for both deep-sky and solar system imaging or stargazing with plenty of image scale for smaller targets and a moderately fast f/7.0 focal ratio. All air-to-glass lens surfaces bear antireflection multi-coatings for superior light transmission. Contrast is equally rich thanks to blackened lens edges and two internal knife-edge baffles that prevent off-axis reflections of incoming light. The Orion EON 130mm Triplet ED Apochromatic Refractor Telescope features an extendable dew shield that further ensures excellent contrast and helps inhibit dew formation on the lens. Combine with a Orion Telescope Mount for excellence in astrophotography.
At the back end of the Orion EON 130mm Triplet ED Apochromatic Refractor Telescope, you''ll find a heavy-duty 3" dual-speed Crayford focuser with precise 11:1 fine focus control. Astrophotographers will appreciate that the Orion Telescope'''s focuser can be rotated in two places, allowing camera framing to be set independently from positioning of the focus knobs at the desired orientation. The focuser features an Orion finder scope base for attachment of any Orion reflex sight or finder scope, if desired. The big focuser''s 3" drawtube sports an engraved millimeter scale to aid in focus point repeatability, and features a focus-lock thumbscrew, both of which are especially useful for astrophotography. Both the 2" accessory collar on the Orion Telescope focuser drawtube and the 1.25" adapter feature non-marring brass compression rings.
The EON 130mm Triplet Orion Telescope comes with two substantial, split-clamp tube rings; a 9.75" long narrow, "Vixen-style" dovetail mounting plate; and an attractive, triple-latch hard case with custom-fit foam interior. The hinged tube rings feature multiple 1/4"-20 threaded sockets for attachment of mounting plates or other Orion Telescope Accessories. The protective Orion Telescope hard case is delightfully portable at just 35" long, and the Orion EON 130mm Triplet ED Apochromatic Refractor Telescope fits snugly inside with its dew shield retracted and thread-on lens cover installed.
This is a Orion Telescope that is so beautiful you''ll want to keep it displayed in your living room for all to admire when you''re not using it under the stars, but when you are using the Orion EON 130mm Triplet ED Apochromatic Refractor Telescope - whether for visual or astrophotography pursuits - you''ll be mightily impressed.
Orion EON 130mm ED Triplet Apochromatic Refractor Telescope OTA Features...
- A premium, 130mm (5.1") aperture triplet ED apochromat offered at an unbelievably low price
- Three-lens ED optics and moderately fast f/7.0 focal ratio work together to provide superb visual and astrophotographic performance
- Huge 3" dual-speed (11:1) Crayford focuser provides precise focus control for sharp images and crisp visual observations
- A beautifully constructed, fully multi-coated triplet refractor telescope sure to impress any apo aficionado
- Includes two split-clamp tube rings and a triple-latch hard case for protection during transport and storage
Orion EON 130mm ED Triplet Apochromatic Refractor Telescope OTA Specifications...
Best for viewing: Lunar & planetary
Best for imaging: Deep sky
User level: Advanced
Optical design: Refractor
Optical diameter: 130mm
Focal length: 910mm
Focal ratio: f/7.0
Coatings: Fully multi-coated
Optics type: Air-spaced triplet
Glass material: Extra low dispersion
Resolving power: 0.89arc*sec
Lowest useful magnification: 19x
Highest useful magnification: 260x
Limiting stellar magnitude: 13.3
Optical quality: Diffraction limited
Focuser: 3" dual-speed rotatable Crayford
Mount type: Optical Tube without Mount
Astro-imaging capability: Lunar, planetary & long exposure
Tube material: Aluminum
Length of optical tube: 32.0 in.
Weight, optical tube: 22.5 lbs.
Additional included accessories: Aluminum-clad hard case, Tube rings, Aluminum, thread-on objective lens cover
Other features: Retractable dew shield, Tapped holes for Orion finder scope shoe, Compression ring eyepiece clamp
Warranty: One yearOrion Product Number: 09565