View Single Post
  #7  
Old 06-03-2008, 09:34 AM
Kokatha man
Registered User

Kokatha man is offline
 
Join Date: Dec 2007
Location: Adelaide
Posts: 486
Telrad.....

Hi again leinad - although you've got the Telrad's alignment/adjustment "knobs" at the back it's allways good to "align" its base along the OTA. This is nothing more than using a ruler with a "square" end and resting the ruler along the OTA with the "square" end pressed up flush against the end "flange" that runs around the open end rim of the scope - this process just makes sure the ruler is laying on the OTA in an "aligned" way.

Just make a couple of marks against the ruler edge to position one side of the Telrad base with, and bingo - you'll know where to "stick" the base.

I don't recommend dispensing with your finder though: the Telrad is a zero magnification device that is absolutely fantastic at zero-ing in on a spot in the sky - but then, if the object you're looking for isn't naked-eye visible, a finder scope is pretty darn helpfull to make further fine slewing movements to centre on your intended object (and other faint stars that you may need to use to reference this object!

Regards, Darryl.
Reply With Quote