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Last image.
Addressed the points below and tidied up the cabling. Added some cooling protection to the MOSFET - not absolutely necessary - happier with it for the time being.
If interested in details PM or email. This is not a trivial mod. Still, I've had it running at -13C saturated with no affect on operation. If the weather is kind I hope to take some shots of M42.
The Arduino also schedules image acquisition and dithering, on what is an unguided set up. The Tak mount is very accurate up to 4 or 5 minutes with careful alignment. 15 minutes is the record without appreciable drift. Arduino does a calibration run once the illuminated lens cap is fitted. Pretty much set and forget.
With temperature control calibration should be fairly consistent.
Anyway, the proof is in the pudding.
Last edited by rcheshire; 28-12-2011 at 03:58 PM.
Reason: a bit more detail
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