Tuesday, March 12, 2013

shared more collimation info

I continued my binocular collimation research.

Simon replied... He explained the some binoculars do not offer adjustments to the prisms; rather, one moves the objective lens with eccentric rings, like in the photo in his flickr gallery.

While searching the web, I came another unique method checking binocular collimation... using the Sun. It's a very thorough article.

I shared some of these recent findings on the RASC Toronto Centre Yahoo!Group.

4 comments:

nick said...

Hi,

I've been looking for binocular collimation info for a while. I'm in Toronto as well, any chance of a meetup to see your setup? I've got a pair of 20x50's that need it bad.

bla said...

Outside of the city now. But occasionally in town.

In the meantime, I encourage you to continue researching. And if you can determine that your binoculars collimation is adjusted by changing the angle of the prisms, it is pretty easy, overall, to fix.

bla said...

Also, see my collimation presentation file and handout notes over here...

http://computer-ease.com/darkskies/preslist.htm

nick said...

Thank you for the link, Mine only have eccentric objective adjustment, but the more important thing for me is finding more holding jigs and setups for precise adjustment. I was hoping for something not involving a moving target (the sun). When I get something together I will let you know.

Thanks!