orion ed80 focuser question.

i've read that the focuser doesn't 'lock down' per-se. can someone confirm this. will this pose a problem if i'm trying to photograph with a 35mm slr body hanging off the end at zenith? how about a binoviewer with a couple of widefield eyepieces?

thanks!

ds

There is no locking screw. There is a tension adjusting screw. I am using it with a 2" mirror diagonal and a 35mm Panoptic, and it holds focus at zenith, although I did have to tighten down the screw pretty hard. I would think that a lightweight SLR would have no problem (OM-1, etc.), but putting something heavy like a Nikon N90 might be tough. The binoviewer will probably be okay without a diagonal, but might be tough with one, especially a 2" one.

Jarad