Tesoo m5 lens is a single thin and flat structure with multiple waveguides (looks like tiny pillars) arranged in a specific pattern. The sensor size of m5 lens is 1/2.7'' to 1/9''. TTL: 2.7-15.95mm. EFL: 1.03-5.60mm. F.NO: 2.0/2.6/4.0/5.7. MBFL: 0.55-6.24mm. Get m5 lens price from Tesoo, the leading chinese camera lens manufacturers now!