In this post I’m going to review SvBony SV238 off-axis guider and how I upgraded it by adding an electronic focuser. SvBony kindly sent me their OAG for review, and I’ve been using it for a couple of months now. I’ll share my thoughts on the OAG itself first, then dive into the custom adapter I created to automate it. Overview of the SvBony SV238 OAG At first glance, the SvBony SV238 looks like many […]