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Doug,
That is the same conclusion I have reached. I checked with a mate who is an electrical engineer - to check power purity is not an issue - the thing is if it where it should manifest in only one sky position.
It could be the SkySensor2000-PC somehow adjust for refractive index incorrectly - why the problem dissappears as elevation climbs - but I want to totally dismiss polar mis-alignment before I look for exotic issues!
Merlin
Yes I do have a 12 mm illuminated reticle, it should aid qualifying exactly what I am seeing. I have spreadsheet now where if you enter a stars elevation and a specific angular degree of drift over a specific period of time it calculates the precise mis-alignment in both axes - I think I will make use this to esitmate how much of an adjustment is required!
The Canon viewfinder has very fine lines around the boxes - so in reality they do exactly the same function as the reticle - given I've aligned the X and Y axes to be RA and DEC drift there is little room for mis-interpretation.
It could easily be that there is a subtle error and/or I am making a basic mistake.
Last edited by g__day; 30-01-2008 at 01:19 PM.
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