Immediately after announcing a 70-300 mm lens that’s apparently for the Japanese market only, Tamron has unveiled the SP 70-200 mm f//2.8 Di VC USD G2 which definitely will be coming to Canada.
Designed for full-frame DSLR cameras, the new lens was developed by substantially enhancing the features of its predecessor, says the company. These included a thorough review of the optical, mechanical and electronic designs to enhance increase autofocus speed and precision, reinforce VC (Vibration Compensation) functions and to shorten MOD.
New features include eBAND coating, moisture-proof and dust-resistant construction, Fluorine coating and compatibility with tele converters.
The lens design features a metal-based barrel for improved handling and ease-of-use.
Both the resolution and contrast reproduction performance have been improved. Bokeh has been enhanced and expanded. The optical design consists of 23 elements in 17 groups. Optimum deployment of XLD (eXtra Low Dispersion) and LD (Low Dispersion) glass elements are said to thoroughly eliminate chromatic aberrations across the entire zoom range, while ensuring uniform, high-level image quality even on the periphery of the image plane.
The new lens is also fully compatible with the 1.4x (TC-X14) and 2.0x (TC-X20) teleconverters.
Utilizing Tamron’s original VC (Vibration Compensation) system, which uses a moving coil mechanism, further reinforcement of the drive system power and control performance now delivers an image stabilization performance of 5 stops, says Tamron. Also, the VC system offers three VC modes, including one mode exclusively for panning.
The lens is equipped with a USD (Ultrasonic Silent Drive) ring-type ultrasonic motor. Incorporating two advanced, high performance microcomputers and optimizing the algorithm has improved both the focusing speed and accuracy compared with the previous model. Additionally, Full-time Manual Focus override lets photographers shooting with AF instantaneously make fine focusing adjustments using MF without switching modes.
Improvements made to the focus cam and zoom cam inside the lens barrel have reduced the MOD from 1.3 m (50.7 in) in the older model to 0.95 m (37.4 in) for the new lens, which has a maximum magnification ratio of 1:6.1.
The eBAND (Extended Bandwidth & Angular-Dependency) coating combines a nano-structured layer with an extremely low refractive index with the conventional multiple-layer coatings. Optimized and exclusively designed for this new zoom, the eBAND Coating provides superior anti-reflection performance, effectively reducing any flare and ghosting, Tamron says.
The front surface of the lens element is coated with a protective fluorine compound that is water- and oil repellant. The lens surface is easier to wipe clean and less vulnerable to the damaging effects of dirt, dust, moisture and fingerprints.
An electromagnetic diaphragm system, which has been a standard feature for Canon-mount lenses, is now available for in Nikon-mount lenses. More precise diaphragm and aperture control is possible because the diaphragm blades are driven and controlled by the motor through electronic pulse signals.
A lightweight and easy-to-hold tripod mount is compatible with Arca-Swiss style quick release plates.
A new textured grip and Arca-Swiss style tripod interface enhances both speed and utility. Because the tripod mount is made of lightweight magnesium, it is much easier to carry.
The new lens is compatible with the TAP-in Console, an optional accessory, providing a USB connection to a personal computer enabling users to easily update the lens firmware as well as customize features, including fine adjustments to the AF and VC.
Filter size is 77 mm, weight is 1,500g (Canon) / 1,485g (Nikon).
The Tamron SP 70-200 mm lens is due for late February release in Japan in Canon and Nikon mounts, with Canadian availability to follow.