Attilla, ... I'm not convinced that the over-full photos section is the reason that some people cannot get into the photos section. If so, then a lot of ...
... glad ... Glatter ... Hi Steve, I use the TLC laser with halographic grid and used it as Nils pointed out until I got a Cheshire. I still use to collimate...
Just thought I'd pass this along to all western U.S. members. WB* I'm posting this because the image is just too good to pass up. I think we have the best...
I have written a page on collimating with the holographic laser at: <http://w1.411.telia.com/~u41105032/holographic/holographic.htm> It is a preliminary...
Nils: You say: "You will notice that the grid is offset to the right, and slightly upwards in the photo." I believe you mean "left" not "right" here. At least...
Nils: I use the simple direct laser to align the secondary and the barlowed laser you suggested to align the primary. It is fast and simple and am delighted...
... that ... Perhaps. It may also have been a trasient problem at yahoo. In any case, I have deleted photos from users who are no longer members. The "over...
Nils Olof, The directions on the site make sense and your earlier caution to use either the Barlowed laser or a Cheshire for the primary mirror should result...
... Attilla, I can get into the Photos section now. It's strange that the problem was only affecting a few people. I saw a number of complaints of the same...
My experience with Discovery was not great. Delivery dates inaccurate and late from the original estimate, customer communication sporadic, and worksmanship...
... the ... buy ... their ... of ... That StarWare edition is pre-U2, right? I think SA2000 coupled with NSOGs can hold me over until I move this summer to DC...
Vic, thanks for your discussion - I can agree with some of your points, but not all. ... spider/diagonal ... This should be reasonably well done during...
Roger, ... I would say it means that the axis of the focuser (=eyepiece holder) is not grossly (but possibly slightly) different from the axis of focuser...
Hi Nils, You're missing the point on the call for "focuser squareness" by many including myself. "Emphasis" of "squareness perfection" is not the intent of...
... Once you advocate focuser collimation--diagonal collimation becomes much more susceptible to subsequent corrections that achieve system collimation only by...
... Or, to rephrase--if one intends to collimate the focuser/diagonal alignment (adjusting both elements) it is often better to start from a "reasonably"...
Jim, I suppose it is a dilemma - no matter what you do, it would always be possible to do it just a little bit better, so where to stop? I would take care and...
Nils and Vic and Others, The discussions you Folks are having here on collimation is of tremendous help and value to all of us. Just wanted to let you know and...
Yea... Shingletown is the bomb. I think that it is the best site of any star party I have attended. Nice and dark, fabulous horizons, clean, they water down ...
Nils Olof Thanks so much for the Barlow laser technique, makes collimation so much simpler. One thing that might help on your holographic page would be to have...
Hello, My name is John Quinley, Currently, I am the owner of a little dob, an Orion XT 8. I have an Obsession 18" f/4.5 on order, scheduled to be delivered...
Hello all. I am so excited. My 16" Night Sky dob came in the mail today. I bought it used off of astromart. Anyway, I have been without a scope for 6 months...
Hi John, Welcome aboard! I'm sure others will chime in on this somewhat debated topic, but there are basically two methods of taking care of that boundary...
Hi Mike, Welcome to the group. You need to set your sights higher than an 18" for sure. You won't find much difference between the 16 and 18. Even the 20 may...
Hi John, The boundry layer problem is more prevalent in the desert south-west. Where the night time temperatures drop up to 10 degrees per hour. Over the...
John, Allow for lots more cooldown time, I sometimes have my 15" out for 2 hours before I even go to observe in the winter here in SD. You are going to love...
Hi John! Brian will have another S&T article about solutions to remove the boundary layer. I've added some small PC fans to blow across the front of my 14.5"...
