Commack, NY—Tamron Co., Ltd., launched a high-speed zoom lens—the SP 24–70mm f/2.8 Di VC USD G2 (model A032)—for full-frame DSLR cameras. The new lens is geared for wide-ranging purposes, including landscape, portrait, news and travel photography.
The lens utilizes new dual MPUs (micro processing units) to provide rapid autofocusing with improved accuracy and the highest vibration compensation performance of any lens in its class, Tamron announced.
The use of specialized glass materials with greater optical transmittance for its lens elements helps assure superior color reproduction and greater sharpness.
In addition, Tamron’s nanotechnology-based eBAND coating curbs ghosting and flare that can occur in backlit photography.
Furthermore, model A032 provides a protective, water- and oil-repellent fluorine coating for smudge resistance.
It also features moisture-resistant construction and a locking lens hood that prevents detachment due to unintentional contact during use.
SP 24–70mm f/2.8 Di VC USD G2 Construction
The lens’s optical construction (17 elements in 12 groups) uses two XR (extra refractive index) elements, three LD (low dispersion) elements, three GM (glass-molded aspherical) and one hybrid aspherical lens element. Together they work to minimize axial chromatic aberrations, transverse chromatic aberrations, as well as spherical aberrations and distortion. They also allow a compact design.
Tamron’s original eBAND (extended bandwidth & angular-dependency) coating combines a nano-structured layer that has an extremely low refractive index with conventional multilayer coatings to provide antireflection performance. Moreover, it teams with Tamron’s BBAR (broad-band antireflection) coating to curb ghosting and flare.
The lens’s new control system uses a dual MPU design with enhanced computing capacity. The MPUs have built-in DSP (digital signal processor) blocks engineered to achieve quicker and more precise AF performance. They are also engineered for more consistently powerful vibration compensation (VC) during low-light shooting.
In addition, Tamron’s VC system employs an MPU dedicated to VC processing with a new-generation algorithm. Providing 5 stops of image stabilization, even in low light or with slow shutter speeds, photographers can enjoy shake-free handheld shooting.
Furthermore, an electromagnetic diaphragm system, a standard feature for Canon-mount lenses, is now employed in Nikon-mount lenses. More precise diaphragm and aperture control is said to be possible because the diaphragm blades are driven by a built-in motor through electronic pulse signals.
Another feature is a 9-bladed circular diaphragm that helps produce creative bokeh. The lens also has a minimum object distance of 15 inches.
Moreover, it is compatible with the optional Tamron TAP-in Console. This accessory provides a USB connection to a computer, so users can update the lens firmware. Using the console, they can also customize features, including fine adjustments to the AF and VC.
Pricing and Availability
The Tamron SP 24–70mm f/2.8 Di VC USD G2 in Nikon mount will be available in August. The Canon mount will ship in September. They will each retail for $1,199. tamron-usa.com