The image is not clear. How to adjust it?
Check the lens mount. C or CS mount are selectable. Adjust the focus length or refocus lens. You can adjust back focus if the device supports back focus function.
For the device that equipped with motorized lens, adjust image via Zoom-, Zoom+, Focus-, and Focus+ buttons.
Check if the lens or the shield is dirty or not.
Check if any obstruction is nearby, e.g. spider web.
Check if the lens is auto iris. You can select the electronic iris.