Focal length: 300mm
Maximum aperture: 2.8
Minimum aperture: 32
Minimum Focus Distance : 6' 7" (2.0m)
Number of Blades : 9 blades
Filter Diameter : 42mm (internal)
Lens construction: 13 elements in 12 groups
Magnification: x0.18
Dimensions (D x L): 5.13/16" x 9.3/8" (122mm x 242.5mm)
Weight: 5lbs 1oz (2300g)