hmmmm, I just re-found this old thread!
Would one of those Peltier coolers out of one of those 'carry' car fridges work in this application. Dork Smith is selling the fridges for $20 at the moment!
And what would be the Voltage and Amps needed to run this successfully?
I can keep the condensation out (to a point) with my IR/UV filter attached to the front of the nosepiece.
EDIT: It's OK, I just found out by reading the ad properly: 12v, 3 amp, 20 degrees below ambient
http://www.dse.com.au/cgi-bin/dse.st...uct/View/M4500