Quote:
Originally Posted by pgc hunter
One thing I always wondered about these bino scopes, wouldn't the observer's body heat ruin the view at higher powers and it seems their head might block a small portion of the light path  |
Obviously I've seen Binoscopes before but it is rather funny that my very first thought like you, on seeing the photo at the top of the page was thermals from the observers head. Why had that thought never occured to me all the other times I looked at photo's of Binoscopes?
I wonder is it the guys bald head??
Maybe thinking about all the mods I have done/plan to do on my scope has conditioned me to think in Pro's/Con's. Pro - Bald head minimises obstruction of the lightpath. Con - No insulation and heat thermals from head wafting into lightpath.
In terms of whether the thermals are a big problem, I think maybe its not a big deal. I presume Binoscoping is aimed more at the DSO observer and are used primarily at Medium to Low powers. Thermals would only really become annoying for high power viewing of Globs and Planetaries. For those brighter DSO's and planets a binoviewer is probably the better option where the light loss is not as much of a problem