GSO 2" refractor Crayford focusers (with 86. Selecting a Focuser Model for your Telescope Click on the picture to see a larger view, and use your browser BACK button. Click here to see photos of Crayford focuser installations on various telescopes.Īdapters for the Celestron 80ED and 100ED refractors are also available, but not for any other telescopes.ī. My ST-80 Telescope was purchased from Orion Telescope and Binocular in California. Click here for a telescope compatibility table to see which focuser might work for you.GSO also sells focusers with 96.6mm and 112.5mm diameter bases plates for larger tubes. The mini-dob mount is surprisingly smooth and easy to use, and mounted on my photo tripod its a rock solid setup. I love my ST80 (sentimental reasons) but for travel the GoScope is hands down the easiest telescope in my stable for travel. But the basic OTA is the same.a Chinese made 400mm. The focuser comes with an 86.4mm (3.40") base plate adapter that slides into the rear of your telescope tube. I have an ST80 and an Orion GoScope 80mm refractor. some like the Orion are scope only whereas Celestron includes a tripod and mount for another 100 or so. Selecting a Focuser Size for your Telescope Selecting the Right Focuser for your Refractor Telescope:Ī. Color Correction & Minus Violet Filtersġ.Correctors, Focal Reducers & Flatteners.This makes me wonder whether to save up for a doublte ED - i.e. really going for the resolving ability - like this bad boy: , or the smaller/popular Altair achromatic 60 mm finder with the focuser upgrade. Though the FLO advertsided ones run into £100s.Ģ. Replace the stock focuser on the Short tube 80, to get that rigidity and fine control. Therefore as an upgrade I see two possibilities:ġ. Therefore I'm now assuming this is going to inhibit guiding my performance going forward. Entry level equatorial mounts dont tack accurately for longer than 60 seconds. Don't get me wrong, I fully expected this with a cheap achromatic refractor. Vega, and generally medicoce resolving of a star field. Whilst using the PHD 2 drift align tool, I noticed very obvious 'traingular' type stars whilst focusing on very bright ones e.g. It delivers wide views of the Moon and planets, brighter nebulas, and as a bonus, also includes a sun and moon filter. I could fill a page explaining how lousy the telescope was, but in the end it was the only telescope I had and it did its job well. In this video I look at one option using a low cost optical tube that is readily available new or used. An ideal telescope for the observer on-the-go, the compact Observer 80ST packs a lot of performance into a small telescope design. As is the case with most amateur astronomers I began my hobby with a 60mm 'department store junk' refractor. 1.1K 59K views 2 years ago There are many routes into Astrophotography (AP). I am a relative newcomer to astrophotography, and have been fiddling about with my Orion Short tube 80 achromatic guide scope. of 4 - Orion ST80 - opinions - posted in Refractors : I have one and love it. Orion Observer 80ST EQ Refractor Sun and Moon Kit. My observing experience- I have observed for the past 11 years, mostly using department store 50mm and 60mm telescopes, which I made improvements on. (I have read similar threads about this, but nothing quite answers my question, so I feel it warrants starting a new thread ) ORION ST80-A CUSTOM OTA SETUP REVIEW: By: Patrick O’Neil The following is a review of the Orion Short Tube f/5 Astronomy achromatic refractor which I improved upon.
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