Hi,
Sorry, another question regarding dew heaters. I've recently cooled my 350D using a water cooled Peltier which showed great improvements in the dark shots taken. I then tried taking some shots at 0C through my ED80 and found it worked well for about an half and hour before my Hutech LPS filter (which was screwed to the end of my 2" primary focus adapter) decided to ice over while inside the ED80 tube
After reading this thread I was wondering if wrapping the ED80 focus tube with a dew heater might fix this problem? I don't have one to test so any suggestions would be helpful.
Thanks,
Markus