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Old 12-01-2009, 11:48 PM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,483
Arrgh..... so are there really people out there that will pay
"1000EUR + shipping + VAT" .....so at about $A2200? for a device that
*will not* correct for:

polar alignment error
intrinsic sidereal/king rate error
mirror flop
mount flexure
OTA felxure
atmospheric refraction
atmospheric convection
camera sag
mount /OTA thermal expansion
mount/OTA thermal contraction
mount non-orthogonality
intrinsic gear indexing errors
etc. etc.

But...by crikey...the constancy of RA shaft rate is brilliant!

Humm.... I seem to recall a dual chip, self guiding CCD camera was introduced to the market nearly 20 years ago, that solved all of these problems....nah...I must have been deluded
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