Tamron 20-40mm F/2.8 Di III VXD A062

This 2022 zoom covers 20–40mm on Sony E full-frame cameras. Tamron still lists it as in production. The 20mm start frames interiors, streets and landscapes where you cannot step back, and 40mm handles everyday scenes and loose portraits.

It suits travel and street photographers who walk for hours. The 12.9 oz (365 g) weight keeps that comfortable. The trade-off is reach: the zoom stops at 40mm, so tighter portraits or distant details need a second lens.

The f/2.8 maximum also keeps evening street work and dim interiors practical. That makes it a sensible single-lens choice for city trips.

The lens weighs 12.9 oz (365 g) and measures 3.41 in (86.5 mm) long by 2.93 in (74.4 mm) wide. It stays small enough to keep street shooting unobtrusive.

The front takes 67mm screw-in filters, so a polariser for skies or an ND for water must match that thread.

The 20mm end is this zoom's defining strength. It frames a full room from a doorway or a whole street from close range. Landscapes also benefit, since 20mm takes in foreground and sky together. At 40mm, the view tightens for single subjects and layered street shots. Zooming uses a manual rotary ring, so framing changes are direct.

The maximum aperture is f/2.8 at every focal length. Indoors or at dusk, that extra light keeps dim rooms workable without raising ISO far. At 40mm, f/2.8 also separates a subject from a busy background, useful for street portraits. Depth of field still narrows as you zoom, though the aperture itself stays constant.

Close focusing reaches 0.6 ft (17 cm), which suits foreground detail such as food or plants. Focusing close with a wide view lets a foreground object loom large against its background. Maximum magnification is 0.2x, so small subjects fill a useful part of the frame.

At 20mm, depth of field stays generous even wide open, which helps whole scenes read clearly. The optics specification scores 81 out of 100.

The lens has no built-in image stabilisation, so steadiness rests with the camera and your handling. At these focal lengths, camera movement shows less in the frame than it would at long focal lengths, which eases handheld work in fading light.

Weather sealing is fitted, and a fluorine coating helps water and oil slide off the glass. After drizzle or sea spray, the front wipes clean in a pass. That combination supports outdoor shooting when conditions change.

A zoom lock is also absent, so nothing holds the zoom at a chosen position in transit. The features specification scores 71 out of 100.

Focusing is internal, so the glass moves inside the barrel as focus changes. Aspherical elements help correct distortion and spherical aberration, which matters when architecture fills a 20mm frame.

Low-dispersion glass helps reduce colour fringing along high-contrast edges such as branches against a bright sky. The construction specification scores 54 out of 100.