Specifications
Focal length: 21.3 mm
Maximum aperture: 2.8
Minimum aperture: 16
Lens Construction: 9 elements in 7 groups
Diagonal Angle of View: 92o
Entrance pupil: 19.4 mm (related to the first lens surface in light direction)
Closest Focusing Distance: 0.7m/2.3 ft
Smallest object field: 696 mm x 1.044 mm
Highest reproduction ratio: 1:29
Filter (type): internal thread for screw-in type filters E 55
Dimensions (D x L): 58 mm 46 mm
Weight: 300 g
Maximum aperture: 2.8
Minimum aperture: 16
Lens Construction: 9 elements in 7 groups
Diagonal Angle of View: 92o
Entrance pupil: 19.4 mm (related to the first lens surface in light direction)
Closest Focusing Distance: 0.7m/2.3 ft
Smallest object field: 696 mm x 1.044 mm
Highest reproduction ratio: 1:29
Filter (type): internal thread for screw-in type filters E 55
Dimensions (D x L): 58 mm 46 mm
Weight: 300 g