Manufacturer’s Description

This lens employs an IF (Internal Focusing) system that maintains the overall length of the lens during focusing. Uses two LD (Low Dispersion) glass elements that effectively compensate for chromatic aberration. Provides high-contrast, outstanding image quality and a soft out-of-focus background effect. Incorporates an AF/MF one touch switchover mechanism built into the focus ring(for Canon & Nikon only). Super performance series provides high performance through outstanding design specifications.

The Specs

Physical Specifications
Dimensions 6.50" Length x 3.30" Diameter
Weight 2.03 lbs
More Info
URL http://www.tamron.com
Additional Specifications
Brand Name Tamron
Lens Construction 14 Elements in 11 Groups
normalized-Weight 32.48
Product Model B01
Parent Retsku B00BP4EMAO
Optics
Filter Size Supported 72 mm
Min Focal Length 180 mm
Quick Glance
Lens Type Telephoto
Max Aperture f/ 3.5
Compatible Camera Mount Sony Alpha and Minolta Maxxum Series Cameras
Max Focal Length 180 mm

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