Category: OS Lenses, Telephoto Lenses, USB Dock Compatible, MC-11 CompatibleClass: SportsTypical Photography: Travel, Nature & Wildlife, Sports & ActionHSM -Hyper-Sonic Motor - Using a motor driven by ultrasonic waves, these lenses offer speedy auto focusing and quiet operation.DG - DG for Digital Full Frame and APS-CDesigned to deliver the ultimate in performance on full-frame digital SLRs, Sigma DG lenses also bring out the best in 35 mm SLR film cameras and APS-C size DSLRs. Remarkable image rendition is achieved by comprehensive correction of aberrations and distortions. Special care was taken to thoroughly minimize color fringing caused by lateral chromatic aberration which is particularly noticeable at high resolution in digital photography. DG lenses can offer both high contrast and subtle tonal gradations, unmarred by flare and ghosting, thanks to Sigma's digitally-optimized optical design and original Super Multi-Layer Coating technology which suppress reflections between image sensor and lens surfaces. Large image circles assure ample peripheral illumination to prevent vignetting OS - Optical Stabilizer An optical stabilizer mechanism helps assure a sharp image while giving you freedom of movement and more latitude in camera settings.Sigma has developed special software (SIGMA Optimization Pro) that can update the lens firmware and adjust parameters such as focus. In addition, the lenses from our Sports line have customizable AF speed, focus limiter, OS function and full-time manual focus function. The “Custom Mode Switch” is the device for further customization on the dedicated lenses.
Product Warranty, By Sigma Photo Beginning July 1, 2013, all brand new Sigma Products purchased from aurhorized Sigma dealers are covered under the 1 year America warranty (North and South America) and U.S.A. extended warranties for a period of four (4) years against defects in manufacturing and workmanship only. Your warranty period begins the day you purchase your Sigma camera, lens and/or flash and runs for a period of four years total from that date. (Please refer to the warranty policy included with your product for each Sigma Product). Please note that the Sigma warranty is valid only to the original purchaser and is not transferable. Grey market products will not qualify for the Sigma warranty coverage.
When sending your Sigma product in for warranty service, please be sure to include the warranty card as well a copy of the original sales receipt as proof of purchase date (the start date of your warranty). Anything deemed beyond normal use will void any and all warranties. As always, our goal is to serve and support our customers. Products purchased prior to July 1, 2013 are subject to the previous warranty policy listed below.
Sigma offers a 90 day warranty for factory refurbished products.
Products purchased prior to July 1, 2013 Prior to July 1, 2013: All new Sigma products purchased from authorized Sigma dealers are protected by a 1 year America warranty (North and South America) and U.S.A. extended warranties where applicable. Sigma offers a 90 day warranty for any product purchased as a refurbished item.
When sending your Sigma product in for warranty service, please be sure to include the warranty card as well as a copy of the original sales receipt as proof of purchase date (the start date of your warranty). Anything deemed beyond normal use will void any and all warranties. As always, our goal is to serve and support our customers.
