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This lens had no focusing ring but was set for a fixed focus ('pan focus') giving a depth of field from 1.75 meters to infinity.
Max. aperture: f/2.8
Closest focusing distance: 175cm
Diagonal angle of view: 61.5 degrees
Optics: 6 elements in 6 groups
Filter diameter: 30.5 mm
Size: 34 x 21 mm
Weight: 29 g
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