Tamron 28-75mm f/2.8 Di III RXD - Sony FE

The Tamron 28-75mm f/2.8 Di III RXD is a constant f/2.8 standard zoom for Sony E-mount mirrorless cameras, weighing 550g with a 67mm filter thread, a 9-blade aperture, RXD autofocus motor, and a minimum focus distance of just 0.19m at the wide end.

Key Specifications

• Focal length: 28–75mm
• Maximum aperture: f/2.8 constant (wide and tele)
• Minimum aperture: f/22
• Aperture blades: 9 (rounded)
• Lens mount: Sony E (full-frame FE compatible)
• Autofocus motor: RXD (Rapid eXtra-silent stepping Drive)
• Minimum focus distance: 0.19m (at 28mm)
• Filter thread: 67mm
• Weight: 550g
• Image stabilisation: None (relies on in-body IBIS)

What makes the Tamron 28-75mm f/2.8 Di III RXD special?

At its core, this lens punches well above its class by offering a constant f/2.8 aperture across the full 28–75mm range — something that's genuinely rare among lightweight travel and allround zooms. That 9-blade rounded aperture produces smooth, pleasing bokeh wide open, which matters a lot if you shoot portraits or want to separate subjects from busy backgrounds.

The 0.19m minimum focus distance at 28mm is a standout feature. It lets you get surprisingly close to small subjects — flowers, food, product details — without switching to a dedicated macro lens. At 75mm the working distance is naturally greater, but the close-focus capability at the wide end remains one of this lens's most talked-about practical advantages.

The RXD (Rapid eXtra-silent stepping Drive) AF motor is quick and quiet in everyday use, making it well-suited to video as well as stills. It's not completely silent under all conditions, but for most mirrorless shooting scenarios — including vlogging and event work — it performs reliably and rarely hunts in moderate light.

Compared to the Tamron 28-75mm f/2.8 Di III VXD G2, the RXD version is the original release and uses a different (older) autofocus system and optical formula. The G2 brings an updated VXD linear motor, improved close-focus performance at the tele end, and refined coatings. If you're on a budget or simply don't need the latest refinements, the RXD version still delivers optically competitive results, especially in the mid-range of its focal length. The Sony FE 24-105mm f/4 G OSS is a common alternative if you want more zoom reach, but you trade two stops of light. If you shoot mostly wide, the Tamron 17-28mm f/2.8 Di III RXD covers the other end of the fast-zoom story on Sony E-mount.

Against Sigma's 28-70mm f/2.8 DG DN Contemporary — a frequent comparison — the Tamron reaches 75mm versus Sigma's 70mm, giving slightly more compression and a touch more background separation at the long end. That 5mm difference is small on paper but adds up in portrait framing. The Tamron is also marginally heavier, though both are compact by f/2.8 zoom standards.

Who is the Tamron 28-75mm f/2.8 Di III RXD for?

If you shoot a wide variety of subjects and don't want to carry two lenses, this is a natural fit. Wedding photographers benefit from the f/2.8 aperture in low-lit venues, and the focal range covers both wide reception shots and tighter portrait framings without a lens swap. Street photographers appreciate the compact form factor relative to most f/2.8 zooms — at 550g it's light enough to carry all day on a Sony A7-series body.

Portrait shooters get real value from the 75mm long end: at f/2.8 you'll see noticeable subject separation, and the 9-blade bokeh is smooth enough for flattering backgrounds. Landscape and travel photographers benefit from the 28mm wide end covering most scenic compositions, while the close-focus ability opens up foreground detail work without reaching for a macro lens.

Video and vlogging users on Sony E cameras get a quiet RXD motor, a versatile focal range for both talking-head shots and environment coverage, and constant f/2.8 that keeps exposure consistent as you zoom. If you're looking for a single lens to pair with a Sony A7C, A7 III, or A7R V for travel or hybrid shooting, this covers the most-used focal lengths without the bulk of a traditional 24-70mm f/2.8.

What to expect when you buy this used Tamron 28-75mm f/2.8 Di III RXD

Buying a second-hand Tamron 28-75mm RXD is a smart move if you want f/2.8 zoom performance without paying new-lens prices. As a well-established Tamron design, parts and firmware support are mature.

Condition & inspection: At Camera-tweedehands.nl, every lens is hand-inspected for optical and mechanical integrity. We document any cleaning marks on the front and rear elements, inspect the aperture blades for oil contamination (a known risk with heavily used zoom lenses), and verify the condition of the 67mm filter thread and hood attachment point for cracks or cross-threading. We test AF performance to ensure it responds snappily in reasonable indoor light; any hunting or lag is noted in the inspection report.

Every used copy sold here comes with a minimum 12 months warranty and has been individually photographed so you can see the exact item before buying. The actual warranty period is shown on the specific variant listing. Firmware updates for this lens are applied via compatible Sony bodies (using the Tamron Lens Utility is also an option if you have the USB adapter dock). We verify firmware is current when listed; any updates will be documented.