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telescopes@yahoogroup...
Mar 1, 2007 10:12 am
126426
Hi, I was using my older style Orion Deluxe laser collimator to check the alignment of my Orion ST80 refractor. I noticed the beam was an oval instead of a...
... The beams from ALL semiconductor lasers are oval: has to do with the internal construction. Only way to get a circular beam is to pass that oval beam ...
... Gene, Thanks, I had no idea. I don't use the laser too much, I seem to have better luck using a Catseye collimation tool on my reflectors. Thanks, Ed...
Thanks for the addresses Gregg, Judging from their website, it seems that Pacific Telescopes Corp. distribution rights are broader then just Canada. I have...
Hi, I used an Orion Deluxe laser collimator to verify the collimation on my Short Tube 80. I used a paper mask with a center spot over the objective to do the...
... There are many different versions of the EQ5 mount. Early ones had poor bearings and shaky stamped aluminum legs. More recent ones have better bearings ...
Ed, If you do find that your drawtube ID is oversized, consider this item, an aftermarket 2" compressor ring for your drawtube from Mercury Systems:...
I am working through the details of adding Sky Commander DSCs to my 10" dob. I would appreciate hearing from anyone who has used encoders of various...
Ed, If you have a micrometer you might check the ID of the drawtube and the OD of the star diagonal barrel. This will tell you if one is oversized and the...
... I recently added Argo Navis with 10k encoders, as recommended by Argo Navis, to my 11" Starmaster Dob, and am very happy with the results. I'd suggest you...
... From: egiesker@... To: telescopes@yahoogroups.com Sent: Sat, 3 Mar 2007 7:06 AM Subject: Re: [Telescopes] Re: ST80 diagonal - How to shim? ... Ed, I...
I'm expecting my newly recoated mirror and secondary mirror in another couple of weeks. I want to mount the mirror on the mount but I'm not sure of the way to...
... on ... is ... group. ... John, Ernie, Thanks for the suggestions. So far, I've obtained the best results by using masking tape on the inside of the...
Hi, I don't understand the reason for all the different EP's that someone like Nagler makes. Is the Plossl better with reflectors then refracters or the...
... I'm not an eyepiece expert - but since the forum is so quiet now - maybe my answer will help prime the pump. I believe that eyepiece designs are inherently...
Rozie Your guess would be correct. Too many different likes and dislikes, dollars to spend, along with scope/mount variations. Modern short/faster scopes...
Since it is slow here like Gene said I'll give a shot at answering your Nagler or TeleVue questions. Plossel EPs work very good in most type of scopes and have...
Rozie, There's a quote from the Orion website www.telescope.com ... "Choosing the right eyepiece design depends on what you plan to view, how finicky you are...
Thanks, As rambling as my post was you were able to get to what I was asking. Your answers were just what I was looking for. Thanks again, Rozie ... [Non-text...
I have been lurking for awhile following this thread and wonder if you have contacted vendors using Royce mirrors. Mr Royce is one of the premium mirror...
... you have contacted vendors using Royce mirrors. Mr Royce is one of the premium mirror makers for the ATM market and several premium telescope makers use...
I've had fixed-focus lens implants for cataracts for nearly twenty years now and despite some drawbacks I am able to see decently well for visual astronomy....
Thanks, Richard, I'll give them a try. I have checked out Royce's web site, he uses a bolt to attach the mirror. I know he offers conical mirrors and I...
Gary, Thanks for taking the time to answer my post and thanks for the astronomy link. I checked it out and signed up. I'm waiting for the day when someone...
Hi guys! Can anyone tell me how good is Orion's 2" dielectric diagonal? I own a 1.25" 2x WO dielectric one and am considering an upgrade to 2". Since I can get...
... Hi Gene: I really can't say for sure since I do not own any really expensive Ep's. Prob the best I own are my Tele Vue Plossl's and my Celestron Ultima....
From: "Leonard Madia" <lmadia@...> ... That's very true ... and the concept holds true for a lot of other things as well. Is a Mercedes 3X as good as a...
... I think you've captured the issue in a nutshell here: It's subjective... Define twice as good - its edge performance what you are looking for, transmission...
... expensive ... Celestron ... eyepiece,my last two were a Speers Whaler and a Antares 32mm 2" both from Sky instruments,Canadian made with Vixen lenses,both...
