I picked up an Orion ST-80T on eBay yesterday. It came with an Orion Paragon HD-F2 tripod. No finder, diagonal, or EP's. I'll have to pick those up. I would...
Regarding eyepieces... You want eyepiece(s) that will give you magnifications up to perhaps 150x at most... probably 100x to 120x should be about what you can...
... Dan answered your question about Eyepieces well but I'll add to it. I suspect your "customer" won't be doing much high power viewing with the 8mm due to...
I'm on my 3rd ST80, after the previous two had terrible QC issues. This one fortunately star tests very well. It did have a very bad case of astigmatism due...
Never seen anything like this. Is this a genu-wine ST80 from Orion or Skywatcher? Peace, Rod Mollise Author of Choosing and Using a Schmidt Cassegrain...
Yup, genuine Orion ST80 direct from Orion themselves. I'm assuming this must be some sort of production issue. I can't be so unlucky as to have received three...
By the way, best way I can describe this problem is like this: Imagine looking through a window. It hasn't been cleaned in a while, and now has a grayish film...
My comment won't matter much, as you'll see, but I'm curious.. is the grayish film on the rear surface of the second lens in the doublet, or the front surface?...
Hi Dan, It's hard to tell, but the grayish film seems to be on the front surface of the second lens. It may be on the rear, but since I didn't disassemble...
Strange, it seems to me. I'd agree from your description and your previous attempts to clean others that it sounds like a manufacturing problem during the...
... For a case - I use a pluck-foam briefcase style case. Several hardware store chains ave them - lowes, home depot, harbor freight. Holds the st-80, finder,...
... I just checked my wife's original Orion ST-80 and the lenses look fine. It was bought a NorthEast Astro Forum about a year after Orion announced the Short...
Hi, I'm Jon and I just picked up an old Helios ST80 :-) I'm currently getting a pinched view of a poorly collimated scope. I have tried the tips and tricks...
Jon, If I remember correctly, slide off the Dew shield by wiggling the Dew shield, as you pull it away from the Telescope....it is held by three felt-like...
... Hi Don, Thanks very much for taking the time to reply. Much appreciated. I'm long past the point of the mods you suggest. I have had the OTA apart, the...
Hello, 80f5'ers - The recent spam message has been removed from the board and the poster as well. My apologies that it got into our system. I'll continue to...
I was looking at one earlier today - ScopeStuff has a GSO 2" Crayford focuser which slots right in for $119, with a dovetail mount for the finder costing an...
Antares Crayford from ScopeStuff by GSO is a great upgrade. I got the dual-speed focuser model, and it makes all the difference. I also got the dovetail foot...
I recently found an Antares 2FOCR2 focuser on ebay which fits my ST80 perfectly. It has 2 locking screws (not your requested compression ring) and Rack and...
... Great choice, David, this is what I have on my ST80, and it really makes all the difference. With the original focuser removed, I brushed a coat of flat...
I bought a very cheap (Chinese) 80mm scope to use as a guide scope. The lenses are dirty, but the objective cell is glued on and will require a painful...
Generally, disassembly and cleaning mostly costs your time, and a minimal amount of materials. It really boils down to if you can get the objective out...
My old 'scope was a Cosmos. The dew shield was a press fit on the lens cell and the lenses were held in place with a plastic threaded retainer that easily...
... Hi Gene, Sorry for the slow response, been away from my scope for a few days and unable to make the measurements. The focuser travel of my old Celestron...
There is a bit of play on my ST80's focusser tube. I am fairly sure that there may have been a shim put in to stabilise it, but probably the glue holding it...
... the ... cut ... focusser? Bruce, Which brand/model scope do you own? If its a Synta made model there are three shims that the drawtube slides on. The lower...
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