Tesoo s mount lens can increase the C port so that you can connect the M12 interface camera to the driving recorder. The sensor size of s mount m12 lens is 1/1.8''and 1/4''. TTL: 14.11-38.4mm. EFL: 0.83-10.50mm. F.NO: 0.9/1.8/2.0/2.2/2.4/2.8/4.0. MBFL: 1.69-5.91mm. Get s mount m12 camera lens price now!