Athlon 35CL-640 #thermal
This guide demonstrates the setup and performance of the Athlon 35CL-640 thermal clip-on unit when paired with a Vortex Razor Gen III 1-10x scope. It covers establishing a baseline at 1x magnification, adjusting focus, and observing image clarity and reticle overlay as magnification increases. The demonstration highlights the thermal unit's ability to maintain image quality across the scope's zoom range.









