Store   /   Photography   /   SLR Lenses   /      Enlarge Image Warranty: 4 Year USA Manufacturers Condition: Brand New & Factory Fresh Stock: Usually Ships In 1-2 Business Days Sigma Zoom Super Wide Angle 20-40mm f/2.8 EX Aspherical DG DF Autofocus Lens for Canon EOS Manufacturer: Sigma   Mfg Part #: 513101 Retail: $610.00 Our Price: $429.00 You Save: 30% Shipping info     Shop With Confidence » All Items Are Brand New » Hacker Secure Shopping » 21 Day Satisfaction Guaranteed » Low Flat Rate Insured Shipping » 100% Secure Online Billing Read what customers are saying about New World Video Direct  Description: This Item Includes: • Front & Rear Lens Caps • Hood • 1-Year Worldwide Warranty + 3-Year Extended USA Warranty Sigma's new 20-40mm f/2.8 EX Aspherical DF lens combines a constant f/2.8 maximum aperture with ultrawide-to-wide focal lengths in a new design which is easier to handhold. The lens incorporates a "Dual Focus" mechanism, which makes the focus ring stay stationary during autofocusing. Unlike most other autofocus lenses, torque of the focusing ring during manual focus remains excellent. A helical focus system eliminates front lens rotation. • 2 Aspherical lens elements • Excellent close focus capability  Specifications: Filter Size 82mm   f/Stop Range 2.8-32   Minimum Focus Distance 11.8"    Magnification 1:4.6   Zoom/Focus Control Two-touch   Angle of View 94.5 to 56.8 Degrees   Groups/Elements 13/17   Length 4.2"    Maximum Diameter 3.5"   Weight 1.31 lb