For All: I just wanted to report you you folks, that on the Michael Lindner Ken Lowther list, the mathematicians are still slugging it out about whether or not...
I recently noticed that John Hall of Pegasus is having all his new mirrors coated by Spectrum with EAL enhanced coatings. The Pegasus site says there is ample...
All: I have always wondered where the alternative but to my mind, very similar amateur built alt-alt mounts are; has anyone built one? Although I have never...
Hello all, I am currently using a 15' obsession. I was previously using a 8' lx200 and the jump has been impressive (almost four times more light). Globulars...
I would like to improve a little bit the movements of my 24" dob because it seems to me they that have gotten less smooth for the 5 years I've used my scope. ...
Just wanted to report on using the new beast on the block... Barbarella as Jimi (Lowry) has named her.... the "Queen of the Galaxies"! I spent three nights...
Has anyone heard of a cleaning method, like collodion or more modern versions, that damaged the underlying figure of a mirror from mis-application? I've heard...
I rebuilt my 12 inch f/6.1 mirror into a lightweight Dobsonian. Total weight is about 16 kilo's. I made a wire spider for it and an aluminium 6-point mirror...
Jan, More information at: http://home.wanadoo.nl/jhm.vangastel/Astronomy/30cmscope/30cm.htm The "more information" I get from that link is: "Helaas, de...
Hi Bill, I never had problems with glued aluminium. The epoxy I use (Bison Combi Power) has a strength of 80 kg/cm^2 or more. It's important to clean the parts...
Enter your vote today! Check out the new poll for the bigdob group: Just for mutual curiosity, what size (in inches) dobsonians do people on this list...
Hello everyone, I recently bought beautiful 16" F4.5 scope built by MC Telescopes. I want to contact MC Scopes to ask a few questions but none of the info I...
I purchased new and picked up in person on August 1st 2005. Scope and mirror (unopened in box) were stored indoor and never assembled until Oki-Tex September...
This is a quick note for anyone attending TSP this year. Jimi Lowrey, with the help of Van Robinson will hold an open house at Lowrey Observatory on Friday...
Time is moving so fast - there are only a few days left to register for SSP, Northern California's biggest and best star party. SSP starts June 30 and...
I'm thinking of having my 25" primary recoated at OMI http://www.opticalmechanics.com/reflective_coatings/about.html Anyone have experience with the quality...
We're planning to be in San Francisco & northern California from June 26 until July 3rd for a summer vacation. Are there any astronomical observatories or...
Got my Ethos yesterday. The sky parted for a moment and I got a glimse of Saturn. The FOV is simply amazing. Moon was too bright for other views so I put my...
I just finished my 14" homemade dob. It is amazing. So now I'm selling my 12" and want to buy some eyepieces for my new baby. Should I get 2" eyepieces and...
Hi All: I will need a compact single axis equatorial platform for a 8" dob. ** Can anyone tell me who other than Tom O. currently makes them? ** If anyone is...
Mike, I just read your post which mentioned your trailer. I am about to buy a new one for my dob and would love to see some pictures. Anyone elese have some...
I used a 1 1/4" hole saw to cut thru the bottom of blocks. Used the original holes as guides till the drill just went thru the bottom. Then used drill hole...
Hi Gang, I am going bino mode only I think. I got the DenkIIs with the power switch. I have pairs of Denk 21mms, 13Nags, and 9Nags. They seem quite parfocal. I...
Seems like most of the thermal cooling issue is focused on the OTA that is in a warm house and then has to cool down. I recently learned of a person (on sct...
I posted 2 pics of a clamping device on my 14" Tscope. Works great need 4 more possibly, if I make a second set of poles instead of chopping. They are in the...
Let's say I have a green laser mounted on a tripod 100 yards away aiming at my dob. I tilt the dob down so that the laser spot is hitting the center of the...
To the mirror-cell minds on the forum… I have completed my see-saws for 6 point ploptimized flotation of a 16" x 1.55" F5. The results are very good. They...
Is anyone a subscriber to Astronomy TEchnology Today? I am thinking about a subscription and wondered if it is full of advertising. I like Amateur Astronomy...
I hate to ask such an unfair question, but what can folks tell me about the relative merits of Denk/Televue/Baader binoviewers? Any consensus as to the best? ...
