Bruce Waddington discusses autoguiding tips, problems and solutions.  Bruce also answers specific questions about PHD2 (Bruce is one of the primary developers of PHD2).

A copy of the presentation slides is available here: http://www.coldphotons.com/Reference/Guiding_Tips_2018.pdf

Bruce’s image gallery and other topics of interest to astroimagers can be found here: http://www.coldphotons.com/cp_astro_top_lg.php

PHD2 Guiding Software: https://openphdguiding.org/