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View Full Version here: : Tedious Newt. collimation with binoviewer?


Insomniac
22-08-2010, 03:10 PM
From what I've read (Denkmeier website), you collimate a newt's optics for the night with the binoviewer in place and use defocused star images instead of a laser.

This sounds like a step back, :confused2: with to-ing and fro-ing between the eyepiece and mirror cell. Is this the way it has to be? Any experience out there?

Chris

tlgerdes
22-08-2010, 07:29 PM
The accuracy/effort of collimation is inversely preportional to the F ratio of the newt :D

You can collimate an F8 newt quite easily with a laser alone, probably even down to an F6, lower than that and the effort required goes beyond just a laser.

bmitchell82
23-08-2010, 01:13 PM
and into the realms of cats eye auto collimator's :D.
I have to say you should get them in any case :) they are so accurate its not funny.!

Insomniac
23-08-2010, 02:39 PM
Sorry, I'm not asking about collimation in general, but specifically when you intend to use a binoviewer.
Chris