Image of the day

Captured by
Roberto Garofalo

North America & Pelican Maped color

My Account

New to Astromart?

Register an account...

Need Help?

Posts Made By: Marc Landreville

February 3, 2003 07:41 AM Forum: Binoviewers

Binoviewer collimation

Posted By Marc Landreville


I recently purchased a Celestron (Baader) 60 degree binoviewer from Astronomics. It made a big difference to planetary detail on my chromacor equipped 150mm Synta, significantly improving contrast.

I put my laser collimator in one of the eyepiece holders, and the spot on the objective lens is about 15 mm off centre. I know that it's not the focuser's fault as it's a Burgess, and rotating the bino in the focuser also rotates the spot around the centre of the objective lens.

Can I have some opinions on whether the miscollimation is important enough to affect the quality of the view, given that the light cone should be hitting the centre of bino opening and that the total angular error from the eyepeice/laser side is in the order of 42 arcseconds.

Considering that I paid about $1000 CAD for it, I wonder if I should send it back to Baader for recollimation or else...


Marc Landreville