Quote:
Originally Posted by jase
Watch out for ghosting; -35 degrees cooling is getting down there.
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On this Jase, FLI have implimented a fix for this and all FLI cameras from now will have the fix as part of the build. I have been offered it as a free upgade but I have only experienced the "Residule Bulk Image" or RBI phenomenon on one occassion when I was aligning the mount on Alpha Centaurus with 3 sec exposures then when I went to Omega Cen there was the residule bulk image in the form of patches of what looked like fog on the chip and some brighter more condensed fog patches here and there. I was running at -30C and once I had identified the cause I warmed the camera back up to 0C and then cooled down again to -25C and the problem dissapeared. The KAI11002 was thought to be RBI free since it is interline but seems this is not the case?
I have since taken to aligning the mount without cooling the chip and afterwards goto my object then cool the chip and even at -35C there is has been no sign of the RBI since..?
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The ProLine can cool to 60C below ambient which will be great for the warmer summer months here, that's for sure! The cooling is pretty fast too (2-3 min for delta 50C). Kodak have asured FLI that thermal shock is no problem with the KAI11002 but FLI will slow down the cooling from now on in cameras anyway just to make sure and again have offerde this change to me as well.
Mike