An object moving or a low/ higher contrast scene can throw off the autofocus option, resulting in a soft focus or even not focus at all.
Using manual focus is an obvious solution, but manual focus isn’t exactly easy to get sharp images.
Manual focus requires a bit of know-how and some practice to get right.
If you would like to improve the performance and get a sharp image, please see below how you can manually adjust the focus ring on a Dinion Thermal camera.
This Special (Focus adjustment guide) is available on the product catalogue too!