NOTE: Some scuffing on printed numbers.
The Tamron 17-70mm f/2.8 Di III-A VC RXD Lens for FUJIFILM is a versatile standard zoom lens designed for APS-C-format Fujifilm X-mount mirrorless cameras, notable as the world’s first 17-70mm f/2.8 standard zoom with a 4.1x zoom ratio for APS-C mirrorless systems. Delivering a 25.5-105mm full-frame-equivalent field of view, it’s aimed at everyday, travel, portrait, and video shooters who want a bright, versatile standard zoom in a single lens.
Optically, the lens is built from 16 elements in 12 groups, including two GM (Glass Molded Aspherical) elements and one hybrid aspherical element, delivering superb optical performance across the zoom range. Tamron’s BBAR (Broad-Band Anti-Reflection) coating helps suppress flare and ghosting for improved contrast in backlit conditions, and a rounded 9-blade circular diaphragm contributes to smooth, natural-looking background blur. The lens maintains a constant f/2.8 maximum aperture throughout the entire zoom range, offering consistent exposure and enhanced control over depth of field.
Autofocus is handled by Tamron’s RXD (Rapid eXtra-silent stepping Drive) stepping motor, delivering quiet, quick, and smooth focusing performance well suited to both stills and video applications, along with full-time manual focus override. A standout feature is the lens’s close-focusing capability, with a minimum object distance of just 7.5 in. (0.19m) at the wide end, yielding a maximum magnification ratio of 1:4.8, extending to 15.4 in. (0.39m) and 1:5.2 at telephoto, well suited to close-up work without needing a dedicated macro lens.
The lens includes Tamron’s VC (Vibration Compensation) image stabilization system, automatically providing optimal shake correction across a wide variety of shooting situations for steadier handheld photo and video capture. Build quality includes moisture-resistant construction along with a fluorine coating on the front element to resist smudges, fingerprints, and moisture, keeping the lens durable while remaining lightweight and well-balanced on Fujifilm’s compact mirrorless bodies. The lens measures approximately 74.6mm in diameter by 119.3-120mm in length and weighs approximately 525-530g, and accepts a 67mm filter thread.
As an APS-C-specific lens, the Tamron 17-70mm f/2.8 Di III-A VC RXD is designed exclusively for Fujifilm’s X-mount mirrorless system.
Key Features
– 17-70mm constant f/2.8 standard zoom (4.1x) for Fujifilm X-mount (APS-C)
– Approximately 25.5-105mm full-frame-equivalent field of view
– 16 elements in 12 groups, including 2 GM aspherical elements and 1 hybrid aspherical element
– BBAR coating
– RXD stepping motor autofocus with full-time manual focus override
– VC (Vibration Compensation) image stabilization
– Rounded 9-blade circular diaphragm
– Minimum object distance of 7.5 in. (17mm) / 15.4 in. (70mm)
– Maximum magnification ratio of 1:4.8 (wide) / 1:5.2 (tele)
– Moisture-resistant construction with fluorine-coated front element
– Compact, lightweight design (approximately 525-530g)
– 67mm filter thread
– Designed exclusively for Fujifilm X-mount APS-C mirrorless cameras

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