Product Description Lens Name Laowa 17mm T1.9 MFT Cine Focal Length 17mm T-Stop Range T1.9-22 Format Compatibility Micro Four Thirds Angle of View 65° Image Circle 21.6mm Lens Structure 9 elements in 7 groups (1 pc of ED glass) Aperture Blades 7 Min. Focusing Distance 15cm (5.90”) Max. Magnification 0.2x Filter Thread Φ49mm Dimensions ~Φ56 x 53mm ( 2.20 x 2.08”) Weight ~175g excluding front and back caps (6.17oz) Mount M43