Tamron
16-50mm ƒ/2.8 A
16-50mm F2.8 A
Tamron 16-50mm ƒ/2.8 A is a 16–50mm zoom lens for the Fujifilm X mount, equivalent to 24–75mm on full frame, with a maximum aperture of ƒ/2.8 and autofocus. It weighs 305 g.

Optics
- Type
- Zoom · Photo
- Focal length
- 16–50mm (24–75mm eq.)
- Angle of view
- 84.1–32.2°
- Aperture
- ƒ/2.8 – ƒ/16
- Constant aperture
- Yes
- Blades
- 7, rounded
- Aperture ring
- —
- Construction
- 14 el. / 10 gr.
- Designations
- A
- Designed for
- APS-C
Focus
- Type
- Autofocus, linear motor
- Minimum distance
- 0.15 m
- Magnification
- 0.22× (1:4.5)
Size and mount
- Diameter × length
- 64.4 × 79.9 mm
- Weight
- 305 g
- Filter
- 55 mm front
- Mount
- Native X mount
Features
- Yes
- Weather sealed, Electronic contacts
- No
- —
History
- Maker
- Tamron · JP
- Announced
- 2026-10-14
- Status
- Current
Model B091. "A" means "for APS-C format mirrorless interchangeable-lens cameras" (Tamron's new naming, replacing Di III-A). Announced 2026-10-14; Sony E and Canon RF ship 2026-10-29, Nikon Z 2026-11-19, FUJIFILM X mount not until 2026-12-17. Angle of view 84°04'-32°11'. Minimum focus 0.15 m (W) / 0.29 m (T); maximum magnification 1:4.5 (W) / 1:4.8 (T). VXD linear motor; Moisture-Resistant Construction and Fluorine Coating. Uses GM and LD elements (counts not given). The official product photo is generic across mounts and not confirmed to show the X mount version.