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DS 20mm 1:3.3
Serial numbers: 1100093, 1100270, 1100548
Focal length20mm   Nearest focus: 30cm
Aperture blades:   Aperture stops: 3.3 - 22
Length/diameter:   Weight: 320g
Lenses / Groups:11 / 9   Filter diameter: 75mm
Angle of view:94°   Max. magnification: 
Remarks:
Entry created on 18.11.2005 - modified on 27.02.2017