I bought one of these (OTA only) from ebay primarily to take photos with a dslr. The f6 ratio makes it wide enough to make decent ones, I think. But, who made...
Hi, I'm Frank, I have volunteered to keep the group going and Mike has taken me up on it. I've made the archives public so prospective members can "try before ...
... Not that I know of. But virtually all of Orion's current scopes, including your 100mm f/6 achromatic refractor, are probably made by Synta, with the...
Now you can post high resolution astro photos or images of your equipment setups, star party snapshots or whatever at the Orion Telescopes Flickr group. Simply...
Thanks, Jeff. Incidentally, I did manage to test this scope side-by side against the Meade DS2130AT long tube and the Konus 70/12.9 as you suggested. With the...
... wrote: Thanks, Phil, for answering my query about the foucser base/telescope tube alignment issue of Orion's p/n 8881 two-step focuser. It's probably...
... I did this replacement on my 8" as part of the original purchase. As far as I could find, there are no adjustment screws on the dual speed focuser. You...
... wrote: Thanks, Phil, for answering my query about the foucser base/telescope tube alignment issue of Orion's p/n 8881 two-step focuser. It's probably...
Hi Group, Thanks to Frank stepping in the group will not be shut down on Oct 1, I have volunteered to act as a moderator and my offer has been accepted. Now it...
Hi Group, Members of the orion-telescope group are invited to also join the Yahoo Chinese_Refractor group. This is an open group not restricted to just...
... Really you don't need _any_ laser collimator. The Orion Cheshire eyepiece (which they call a collimating eyepiece) is actually a far more useful and...
... one? ... more ... up/~pcategory=accessories/~product_id=03640 ... their ... quite ... Right. I have used nothing but the Orion Cheshire collimating ...
I believe that to use that one, you look through the end of the unit, as if it was an eyepiece. Unfortunately, I discovered that I'd need to start purchasing...
That's a good price and these little babies come in handy when trying to fine tune the alignment of the focuser and diagonals in refractors. ... From: phils67...
I'm going to jump in and side with Geoff. I find the Cheshire sold by Orion to be a much better tool for collimation. I bought a laser collimator when I...
David, In your last post about last collimators, you said "... while the laser is easier to use it is not accurate unless you use a sight tube to get the ...
... A sight tube has a central hole at one end and crosshairs at the other, which define its optical axis. The secondary is adjusted so that it is exactly...
Harry, The first step in collimating a newt is getting the secondary adjusted. Two adjustments are required, first you need to center the mirror under your...
Let me point out that laser collimation is not all that bad. A big problem with collimation in general is slop in the fit between the sight tube or Cheshire or...
A beautiful warm and still night, not good seeing, though. Still, beats TV. Anyway, I took out the Orion 100mm f6 and looked up into my cone of darkness. From...
... The North America Nebula is a very difficult object to see. It requires a very dark sky, excellent transparency, and a wide field of view. My best views...
Ever wonder whether your sky is as good or bad as you think it is? Wonder how far you might have to drive to do better? This might give you some idea. It has...
I have an Orion SVP 100mm f6 refractor which exhibits astigmatism to the extent that it will not split the Lyra quad. I have read somewhere that astigmatism...
Frank My SVP f8 120 had a 'pinched' objective. I made an optical wrench from a thin slat of wood with two small nails spaced and filed to fit the objective...
Are you trying to mount both at once, or one at a time? Orion sells tube rings in sizes that should fit the scopes, and dovetails for the Sirius mount. Wayne...
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