Tamron developing lightweight, compact 100-400mm F4.5-6.3 lens
Third-party lens maker Tamron has officially announced that it is working on a new tele-zoom lens for full-frame cameras: the 100-400mm F/4.5-6.3 Di VC USD (Model A035).
Thanks to the use of magnesium in key areas of the barrel, Tamron claims the lens is both durable and, weighing in at just 1.12kg, the lightest in its class. The optical design incorporates three low dispersion elements to control chromatic aberration and Tamron's eBAND (Extended Bandwidth & Angular-Dependency) coating to minimize reflections and flare.
Tamron also included a high-speed Dual MPU (Micro-Processing Unit) control system, which works in conjunction with Tamron's Ultrasonic Silent Drive focusing motor to deliver AF speed and precision.
The lens will be compatible with Tamron's 1.4X teleconverter and the Tamron TAP-in Console that lets you fine-tune and adjust focus and stabilization, among other parameters. An Arca Swiss compatible tripod mount will be available as an optional accessory.
If everything goes to plan, the 100-400mm F/4.5-6.3 Di VC USD will be available by the end of 2017 in Canon and Nikon mount versions.
Tamron announces the development of a new ultra-telephoto
zoom lens with superior image quality, advanced features
and lightweight, compact design
100-400mm F/4.5-6.3 Di VC USD (Model A035)
September 15, 2017 – Commack, New York – Tamron USA, Inc. announces the development of a new ultra-telephoto 100-400mm F/4.5-6.3 Di VC USD zoom lens (Model A035) for full-frame DSLR cameras. The advanced optical design of Model A035 includes 3 LD (Low Dispersion) lens elements for greater aberration reduction and Tamron's original eBAND Coating for superior anti-reflection performance.
At 39.3 oz., the new lens is the lightest weight in its class and features magnesium material in key areas of the lens barrel to improve weight reduction, strength and portability.
The Model A035 delivers fast and precise autofocus performance and consistently powerful VC (Vibration Compensation) benefits thanks to the high-speed Dual MPU (Micro-Processing Unit) control system that is found in the latest Tamron lens models.
Model A035 is fully compatible with Tamron's 1.4X teleconverter and the Tamron TAP-in ConsoleTM that enables lens customizations for focus adjustments, VC mechanism adjustments and more. Additionally, an Arca Swiss compatible tripod mount is available as an optional accessory.
This combination of features and optional accessories join to create a lens that photographers everywhere will enjoy using in various shooting situations, including low-light conditions that require handheld operation as well as those where convenient attachment to a tripod is preferred.
 Among 100-400mm F/4.5-6.3 lenses for 35mm full-frame DSLR cameras (As of September 15, 2017; Tamron)
- 3 LD (Low Dispersion) lens elements effectively compensate for axial chromatic aberrations, a potential issue for ultra-telephoto lenses, and other various aberrations.
- eBAND (Extended Bandwidth & Angular-Dependency) Coating, with superior anti-reflection performance to eliminate flare and ghosting, provides flawless, crystal clear images.
- High-speed Dual MPU (Micro-Processing Unit) control system delivers quick and highly responsive autofocus performance and outstanding vibration compensation.
- Lightest weight (39.3 oz.) lens in the ultra-telephoto zoom lens category.
- Optional accessory tripod mount is Arca Swiss-compatible.
- MOD (Minimum Object Distance) of 59" and maximum magnification ratio of 1:3.6
- Moisture-Resistant Construction and Fluorine Coating for weather protection
- Fully compatible with 1.4X teleconverter and TAP-in ConsoleTM
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