[Garyh]

My conclusion?
After some more experimentation my conclusion is that it does help in the warmer weather and with the longer exposures.
With the 600 second exposure there is quiet a difference with the noise level! but less so with shorter exposures and cooler nights. But with the second test the sensor was cooler than when used without on a cooler night. As a guess I am bringing the ccd sensor down by about 8 degrees maybe a bit more? I was hoping for a better results but that would only be achieved by modding the camera to get the cooling element in contact with the back of the sensor?

Conclusion: ....for warm nights above 20c and long exposures.
.... lower temps not enough difference to bother to set up.
Fan caused no detectable problems at 850mm focal length.
Cost only $30 total and no modding the camera!
I need a way to attach to a tripod with peltier fitted for piggyback shots?

Also had to alter my insulating case as there was some air blowing in from the fan causing a bit of condensation on the bottom of the camera (humidity was rather high)...now fixed.


Any comments welcome or a alterations perhaps?
Cheers Gary...