Three LD (Low Dispersion) elements are effectively deployed to correct chromatic aberrations, a challenging problem when shooting at long distances and at long focal-length settings. Tamron's eBAND Coating and BBAR (Broad-Band Anti-Reflection) Coating help suppress flare and ghosting for class-leading image quality.
This new coating technique developed by Tamron deploys a nano-structured layer (1nm = 1/1,000,000mm) of ultra-low refractive index, with dimensions smaller than the wavelengths of visible rays of light. This nano-structured layer coupled with the sophisticated multiple layer coatings underneath, yields significant anti-reflection properties, efficiently reducing undesired flare and ghosting to an absolute minimum to deliver sharp, crisp images.
Moisture-resistant construction helps prevent moisture from penetrating the lens.
The quiet high-torque USD motor ensures a speedy and accurate autofocus response.
VC (Vibration Compensation) is Tamron's proprietary image stabilization system. Tamron's VC is a three-coil system, whereby three driving coils activate the shake-compensating VC lens group electromagnetically via three ceramic ball bearings. The VC lens elements are held in place only by contact with the ceramic ball bearings, achieving smooth movement with little friction. And since the VC mechanism is moved in parallel using only the motorized control, the mechanical structure has been simplified, enabling the development of a more compact lens.
By Tamron. Tamron USA, Inc., or its authorized agents, will not repair any product that is not an officially imported product and sold through an authorized Tamron USA dealer. In other words, there will be no authorized repair service under any circumstance for gray market products. In such a case, the user must return the product to the dealer at which it was purchased for unauthorized repair service.
Tamron USA, Inc. Six-Year Limited Warranty (Six-Year Limited Warranty Valid in USA Only)
Only Tamron lenses imported officially by Tamron USA, Inc. and distributed by authorized Tamron USA, Inc. dealers carry a Six-Year Limited USA warranty.
Check Authenticity of Your Product: You can check the authenticity of the product you have/plan to purchase by locating the silver hologram Tamron USA Authorized Dealer/Six-Year Warranty logo sticker on top of the lens box. You may also call Tamron at 1-800-827-8880 to verify the serial number.
Look for this logo. Dealers not authorized by Tamron USA, Inc. cannot offer any warranty and cannot use this logo. All authorized Tamron USA dealers are requested to place this logo on their website; however, some dealers, even if authorized, may not have the functionality to add this logo to their website. We highly recommend that you check with the dealer or Tamron USA, Inc. to determine whether the dealer is authorized. You can find a list of authorized Tamron USA dealers by clicking here or by calling 1-800-827-8880.