Hi Rob. I've been out of circulation due to a severe case of the flu. Got a mail from the factory this morning regarding a new motor for my MT-3S mount. One...
http://www.telescopes.ru/ Official Website for TAL Scopes, they reply promptly and they do have a sales team that understands English ... From: andrew554495...
Does anyone know the weight/load capacity of the TAL GEM2RA mount? This mount originally came with their 6" f/8 reflector. All in all, its been a great...
I think the TAL GEM2RA is a motorized mount - if so, the optical tube assembly has to be counter balanced by the weigts on the other side of the motor. If...
A word of caution to begining astrophotographers. Astrophotography with the 150PM is rather difficult simply because although the mount is motorized, it does...
Yes, I agree with hwnewton. Astrophotography is not easy. The problem is not the scope Tal150P but the mount MT3S. Almost all of my photos are 30-45 sec....
Well, I use the 200K on mine and it carries it easily. I know of someone who uses a 10"F5 Newt on his. I also have the MT-3S mount, which is rated for...
I also can use my 200k on my old 2M mount. I use the homemade adapter plate described by Bill Brady. The 200K doesn't even start to strain the mount. The 150P...
Hi All..Looking at various write-ups on collimating a Newtonian and that the earlier Tal 2 has a spherical mirror where have i noticed/read that the secondary...
I'm not sure where the notion of aligning the secondary anywhere but in the center came from. Certainly you would not do this with a parabolic mirror - if you...
Hello, Have a look at the Sky and Telescope site in the Do It Yourself under collimating a Newtonian Telescope. It was the eye opener for me. Hope this helps...
The instruction book for my TAL2 No.92 (recently sold) says center the secondary i bought a cheshire collimator for this and the results were brilliant. Try...
Re seconday mirror "Off Set" ... I'm quite sure that this is indeed well known as a requirement for proper alignment of the the primary and secondary mirrors...
Hi Hal, sorry, I have to disagree. Offsetting the secondary mirror is not a notion, but necessary in fast newton systems. If you don't offset with f/5 and...
This is clearly one of those subjects that can get grossly out of control and into heated discussions. Lets see if we can avoid that. I looked at 2 web sites...
Hi all, Information from Texereau's book is correct in regards to Offsetting the secondary. It is also more important the larger the scope. If you draw a...
The original reference to sky and telescope for collimating a newtonian was a very wise reference. I just read through it and it includes as a sidebar some...
Is this not just simple geometry? An ellipse is a conic section, in this case the cone is the light cone. However, the centre of the ellipse is not at the axis...
Hi All....A query on the rotation of the motor running the RA Axis.! Does anybody have any information as to the direction of the shaft rotation of the motor...
The original motor rotates in a clockwise direction at 1/5 rpm. I hope that helps. CS Steve ... From: rob wood To: TALScopes@yahoogroups.com Sent: Sunday, 01...
Hi Rob, Glad you liked the motor, but understand the main bearing is no good. The 2M is an f/8 which dates back to the 1950's. The spherical mirror is on the...
Just acquired this mount and RA drive is intermittent. The motor shaft appears to have too much play and must be in just the right position to engage inside...
Hi Richard. Sounds like the motor reduction gearbox is suspect. My mount showed similar problems before I replaced mine. Here's a link to a pic of my worn...
Hoping i read your question correct!!Had the same sought of problem with my motor/gearbox.May be the shaft is not engaging the the reduction gear because of...
Dear Rob thanks for the reply and excuse me for delay in answering but I am currently struggling with a bad cold but will get on it when I recover Richard ... ...
Dear Andy thanks for the reply and sorry for the delay in answering but I am currently under the influence of a bad cold and not up to much astro fix. ...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
