GTO vs AE/AEL data #Absolute_Encoders


Hi folks:

I posted a similar question in CN; after a few responses I realized I might have to come to the source. 

Here is my question:

I currently own a 900GTO, have a 2018 AP1100 arriving soon and also a AP1100AEL due late this year, do you have any data from either PI or other source, that the actual FWHM or Eccentricity values were tighter/better with the encoders?


I would like concrete data at the image not PHD2 graphs which are meaningless anyway...


If you did see improvement: At what scale and what seeing conditions it took to see the improvement?

Thanks so much for your time and wisdom,

Roger M

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