Tamron 100-400mm F/4.5-6.3 Di VC USD (Nikon F mount) (A035)

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Tamron 100-400mm f/4.5-6.3 Di VC USD is a super-telephoto zoom lens made for use on a camera with full frame sensor, but also works well on APS-C models. The lens is unusually light for its focal range, with a weight of only 1115 grams. But that is not reflected in the build quality.
The barrel is partially made from metal(magnesium alloy) and rubber seals have been placed on all moving parts of the tube to keep out moisture. In addition, the front lens element has a protective fluorine coating that repels rain drops, oil, fingerprints and dirt and makes it easier to clean.

Dual processors for maximum performance
An ultrasonic motor (USD) provides fast and quiet auto focus. Built-in image stabilization, (VC, Vibration Compensation) allows for sharp images at up to 4 steps longer shutter speed than you can normally use at free hand. The lens also has dual microprocessors to guarantee maximum performance for both auto focus and image stabilization.

An Arca-Swiss style tripod mount is available as an optional accessory. Designed exclusively for this lens it provides quick and secure attachment to a tripod and greater stability.

With a minimum focus distance of 1.5 m at all focal lengths the lens provides a maximum magnification ratio of 1: 3.6. A focus limiter can be used to make sure the lens is optimized for longer distances, a useful feature for action scenes like sports photography.

Optical construction
The advanced optical design consists of 17 elements divided into 11 groups. Three elements are made of LD glass (Low Dispersion) to counteract chromatic aberration while Tamron's eBAND and BBAR anti reflection coatings ensure maximum image contrast by minimizing ghosting, flare and reflexes.

Accessories
Besides the Arca Swiss compatible tripod mount the Tamron 100-400mm f/4.5-6.3 Di VC USD is also compatible with Tamron's 1.4x teleconverter TC-X14, providing a focal length of 140-560mm with a maximum aperture of f/6.3-9. Used on an APS-C camera it becomes equivalent to a 210-840mm super-telephoto zoom for full frame.

The Tamron TAP-in Console allows the photographer to update the lens firmware and adjust the autofocus and image stabilization.

Important features

• Made for full frame but can also be used on APS-C cameras
• Dual processors for maximum AF and image stabilization performance
• Ultrasonic motor (USD) provides quick and silent focus
• Image stabilization (VC) capable of handling 4 steps longer shutter speeds
• Weather sealed lens barrel partly made of metal for premium feel
• Front lens treated with fluorine coating to repel water, oil and dirt
• Advanced optical design with 17 elements provides high image quality at all focal lengths
• eBAND and BBAR coatings for maximum light transmission and image contrast
• Electromagnetic aperture with both Canon and Nikon cameras