Quote:
Originally Posted by avandonk
PEC is really only a measure of the quality of mechanical drives of your mount. With autoguiding it is irrelevant.
Bert
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Well, not quite "irrelevant".
If your PEC has been trained (in any way - including an autoguiding setup), the autoguider will have smaller corrections to make (because they will have already been compensated for). Hence, systems such as the ones in the Meade LX200 allow you to "Train PEC", and then "Update PEC" to further refine it.