Quote:
Originally Posted by multiweb
Good reference.  |
Quote:
Originally Posted by jwoody
Most useful, thank you
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My pleasure. As it turned out my 9 year old SBIG STX16803 was showing signs of old age.
The input PCB/cooler driver board were suffering from corrosion, which was causing odd spikes in the light and dark frame data.
The replacement PCB from SBIG wasn't cheap, but effectively renewed the camera's noise profile to that of a freshly minted model.
Rather than ship the camera to the USA, with help from the tech guru's at SBIG I did all the work Sydney and ended up learning more about the camera than I really wanted to in the process.
The read noise and gain values had to be measured, calibrated and re-written to the camera's EPROM. The calibrated frames are again absolutely and clinically clean.
So much so, and to paraphrase Mark Twain... rumours of the death of CCD's are greatly exaggerated IMHO
