EF 50-200mm f3.5-4.5L

introduced 1988

Lens construction: 16 elements in 14 groups
Minimum aperture: f29
Aperture blade: 8
Closest focusing distance: 1.2m
Magnification: 0.23x
Filter size: 58mm
Size: 76 x 146mm
Weight: 695g
Lens hood: ET-62
Hard case: LHC19