The MH25 Cat Tail Focus Assist provides faster, easier, and more precise focusing adjustments. This Cat Tail makes it easy to focus without inadvertently opening or closing the MH25 objective iris lens cover.
The main one is focus. A thermal objective has to be refocused as distance changes, and turning a small ring by feel in the dark is slow and can bump the MH25's iris lens cover. This cat tail gives the ring a lever. Thermal also shows heat rather than fine detail, and it can't see through window glass.
Not in most states, where deer hunting ends at legal shooting light. Hogs and coyotes are a different story in many places. If night hunting is legal where you are, an MH25 with a cat tail makes it easier to refocus on animals at different distances while you scan.