Thread: Qsi 583
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Old 11-03-2009, 11:34 PM
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Gama
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Greg, you have to understand noise of a CCD chip. "Noise" is random. If you get the same pattern, then you have NOT introduced any noise from the electronics.
If electronic noise was the main culprit, then its NOT predictable, as it can vary at any point and any temperature.

Cooling has a huge effect on sensor noise, this is why they use liquid nitrogen to cool the sensor, and not the whole camera
Even a -10 deg level is huge. Sbig darks, FLI Darks, etc, will have low noise as long as its cooling is great.
This is where FLI is a leader at. To get -65 Delta is a huge step, and remember what cools one side produces heat on the other.
Again, here is where you pay for you toy. It has to dissipate that heat without passing anything into the sensor side.
They dont make the cameras solid for no reason.

Theo
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