Replacement focusers in order to achieve focus.
Please note, due to the oddly long drawtubes on the Meade AR5 andĪR6 refractor factory focusers, an extension is often required with #FRM3 fits Orion ED80 and ED100, 102mm from Orion, Skywatcher, #FRM2 Fits Orion ST80, AT-1010 and NightHawks perfectly! #FRM2 flange outside diameter is 86mm or 3.4" to fit 3.5" OD tubes. Minimum in-focus length from scope tube to 2" barrel is 3.6".įlanges are drilled and tapped for three M4 screws. The Refractor Crayford Focusers have 80mm travel. The two speed versions have a 10:1 ratio reduction knob for Whether it's a light eyepiece or a heavyĬamera, control is smooth and precise, with no image shift, The bodies are black anodized machined aluminum and have tensionĪnd lock controls that adjust the focuser anywhere from a very Internally baffled and anti-reflection blackened. No grease or plastic glides! The 1/8" thick-wall drawtube is
The draw tube and unifiedĬompression ring visual back are machined from solid aluminum,Ĭlear anodized, and ride on precision bearings and a roller shaft. Sticky grease, rough racks, shims and springsįor crude adjustment, and bad feel are common.īolt on our Crayford focuser and enjoy smooth operation, greatįeel and precise adjustability. The end of the collar is even threaded with male T2 threads, allowing threaded attachment of a DSLR directly to the focuser (with proper T-ring) for photography.These solid GSO Crayford focusers can transform your scope intoĪ dream machine! The factory focuser is the weakest link in most The eyepiece holding collar on the focuser drawtube has 2 thumbscrews to ensure lockdown of your guide camera or diagonal. The ShortTube 80 Refractor Telescope OTA measures 15" in length and its fixed aluminum dew shield extends 3-1/4" out from the objective lens, preventing dew formation and blocking off-axis glare. Add your favorite telescope eyepieces, correct-image or mirror diagonal, and finder scope or reflex sight (all sold separately) and you'll have a high-functioning instrument customized for any adventure! It will attach easily to your larger primary telescope tube assembly with the proper rings and dovetail, and will accept your digital SLR, small CCD camera, or a stand-alone autoguider. If you are looking for a lightweight, fast guidescope, consider the Orion ShortTube 80 OTA. Multi-coating on all air-to-glass optical surfaces of the Orion ST80 ensures maximum light transmission for sharp, accurate image fidelity. Enjoy experiencing the phases of the Moon and tracking the motions of the planets with crisp views of Saturn's rings and Jupiter's moons. You'll see spectacular star clusters, wispy nebulas, and expansive galaxies with this telescope, but it also excels at viewing objects in our solar system. The 80mm objective lens and short 400mm (f/5.0) focal length are perfect for taking in wide swaths of the heavens, making it ideal for larger deep-sky objects.
#ORION ST80 PORTABLE#
Add your own accessories to the Orion ShortTube 80 and it will become a fantastic astronomy telescope that is portable enough to take anywhere. Orion ShortTube 80mm OTAThe Orion Short Tube 80 OTA is an improved version of the original Orion ShortTube 80 telescope, with fully multi-coated optics that reveal brighter, sharper images.
0 kommentar(er)
