HCO ScoutGuard SG550 is one of the smallest hunting cameras on the market today. It measures 5-1/4 inches by 3-1/4 inches by 2-1/2 inches. With a dimension of almost the same as a beer can, you can easily carry them to the field and mount them any way you want. And it also has great advantage in being hidden. At this point, it's also a great security camera.