The 16mm cine lens has a wide view angle of 73 degrees, great for landscape videography With a wide aperture of T2.2, the lens allows you to create shallow depth of view videos The lens structure is 10 groups 13 elements, makes the lens capable of producing sharp image and videos with low distortion Lens Not Attached:MANUAL LENS need you to enable"M mode" or "Release without lens" in the setting of camera. The lens is all metallic structure, makes the lens solid and durable Compatible with M43 mount cameras such as Olympus E-PL5 OMD-EM10, Panasonic Lumix GH5 GM5 and BMPCC Compatibility: Micro Four Thirds M43 mount cameras and camcorders, such as: Olympus: E-P1 E-PL1 E-P2 E-PL2 E-P3 E-PL3 E-PL5 E-PM1 E-PM2 OM-D E-M5 E-P5 OM-D E-M1 OMD-EM10 etc. Panasonic Lumix: G9 G1 G2 G3 G5 GF1 GF2 GF3 GF5 GF6 GF7 GH1 GH2 GH3 GH5 G6 GX1 GX7 GX8 GH4 GM1 GM5 etc. Focal Length: 16mm Min. Focusing Distance: 0.2m Aperture Range: T2.2 - T22 v Lens Construction : 10 groups 13 element Focus Type: Manual Focus Aperture Type: Manual Aperture Filter Size: 77mm 4/3 "Angle of View: horizontal: 61 °/ vertical: 47 °/ diagonal: 73 ° Operating Temperature: -10 ~+50 Weight: Around 560g Package: 1*16mm t2.2 lens 2*Lens Cap(front and rear) 1*Lens pouch 1*Lens Cleaning Cloth 1*Manual and Warranty Card