Home Forums Hunting & Shooting Hunting Optics educate me. thermals and night vision...

I ran this past my Burris Tech Rep and he replied:

"Burris clip-on thermal *does* still have a zoom function, and it works just like any other thermal zoom. When zooming the dayscope however, all you're doing is zooming in on the display screen at the back of the clip-on. This isn't much of an issue at low powers, hence why I much prefer to use the BTC with LPVOs like the RT-6, or a fixed-power prism sight like the RT-3 or RT-5.

Something to keep in mind is that the clip-on's zoom may not be centered on the same point as the dayscope's crosshair, which is why we have the image shift function built into BTC's menus - typically though, I don't recommend using it as it can change your point of impact when the clip-on is attached. In the field, I'll use the thermal zoom to ID a target, then zoom out and use the dayscope zoom to actually engage it."