Specifications:
Equivalent 35mm-Format Focal Length: 127.5
Lens Groups/Elements: 7/8
Angle of View 1 (35mm): 29o
Angle of View 2 (APS-C): 19o
Aperture Blades: 9
Circular Aperture
Min. Aperture: 22
Min. Focus: 0.85m (2.8 ft.)
Max. Magnification: 0.13
Filter Diameter: 72mm
Distance Scale
Depth of Field Scale
Non-Rotating Focusing Ring in AF Mode
Focus-Hold Button
Distance Encoder
Size : 81mm x 75mm
Weight : 640g 
Includes
Front Lens Cap, Rear Lens Cap, Solid-Circular Lens Hood, Carrying Case
Warranty
Comes with 1 year warranty