EF 100-300mm f5.6

introduced 1987

Lens construction: 15 elements in 10 groups
Minimum aperture: f22
Aperture blade: 8
Closest focusing distance: 1.5m
Magnification: 0.26x
Filter size: 58mm
Size: 75 x 167mm
Weight: 695g
Lens hood: ET-62/3
Hard case: LHC21