Quote:
Originally Posted by strongmanmike
....all that and STILL only 50degC cooling? ...
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Hey I'm cool....
But for the newbies out there, delta T's are rarely constant (ambient temp and air flow can have a big influence) and often *reduce* once the thermal cooling/inertia of the camera head is lost after being heated by the peltier stack. (thermal runaway can happen at that point...not good)
I've personally found bugger all difference in well calibrated images taken at -15 or -25 degrees. The key is the quality of the calibration frames rather than the CCD temperature set point.