Quote:
Originally Posted by Peter Ward
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)
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You may be right Peter but luckily I have been able to image at a chip temperature of -35C on each and every night I have imaged since receiving my ProLine in mid 2007 right throuh summer, autumn, winter and spring and in fact could have gone colder on "every" ocassion and no water pumps and tubes in sight, so any variations in the dalta cooling of the FLI ProLine haven't been great enough to stand in my way in sunny Newcastle.
Mike