Hello @newdroneflyer ,
In order to adjust focus of the hires camera, you need to do the following:
loosen the screw that holds the lens and prevents it from turning. this will allow the lens to turn within the assembly
turn the lens using the lens focus tool (should have come with your Starling 2), it is a black plastic tool that goes around the rim of the lens and allows you to turn the lens.
after focusing, tighten the screw that was loosened in step 1.
starling2_hires_focus_steps.png
Here is the picture of the focus tool, it has two sizes - one for hires camera, one for tracking camera (if needed). You should have received one with the Starling2 (in an envelope, probably different packaging).
starling2_focus_tool.jpg
Alex