Quote:
Originally Posted by avandonk
The delta T depends on the heat load and the heat pumping capabilty of the Peltier stack. You are cooling a single chip directly with no real heat load apart from the much higher internal heat generated by CCD's as compared to CMOS. The numbers are as impressive as is the condensation problems.
The only reason these CCD's work at all is their brutal cooling. I would like to see a Canon CMOS at the same conditions and without Bayer filters.
There is more but I can't be bothered.
bert
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You are right Bert, some chips really benifit from super cooling others not so much. I notice with my camera KAI11002 chip that at lower temps things do indeed improve and beinga able to run at -35C all year also means much less bother with dark libraries etc...
I think the Sony chips are more tolerant of warmth though..?
I have no condensation problems at all that I can tell. The CCD chamber is purged of air and backfilled with Argon.
Mike