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Originally Posted by davidpretorius
good one!!
so how do you adjust for something going out of whack so to speak and not have it show up on the image. do you cover your tube with a black cloth whilst adjusting?
signed
noobie
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Hi davidpretorius,
Potentially it could take a chapter or two to answer that question in full.
However to keep it short - the guidescope has an illuminated bulls-eye reticle with concentric circles. You must keep a guide-star in the bullseye while the imaging is in progress. The guide-star will wander back 'n forth as well as up and down (to a lesser degree). The hand controller I have has a fast 'n slow button so that I can speed up or slown down the telescope tracking to keep the guide-star in the bulls-eye.
Basically that's it.
Of course there are many other factors to consider: like the guidescope should have a focal length of about 2.5x to 3.0x that of the photographic telescope - so the guide-scope "sees" errors that can be corrected before the photoscope records the error.
Clear Skies
Paul Mayo