Aperture ratio: 1:1.2. Lens construction: 8 elements in 6 groups. Angle of view:54.9. Number of aperture blades: 10. Minimum focus distance: 0.3m.
Maximum magnification: 1:4.9. Maximum aperture × total length:? 70.8 mm × 56.4 mm excluding protrusions, etc. International Buyers - Please Note. Than you for your understanding.