Sirui Aurora 35mm f/1.4

Sirui's Aurora 35mm f/1.4 is a full-frame prime for street, reportage and environmental portrait work. The 35mm focal length suits scenes where you move around a subject rather than zoom. The bright aperture keeps working as light fades. It launched in 2025, and the Sony E version remains in production.

Four versions cover Sony E, Fujifilm X, Leica L and Nikon Z, so choose the one made for your camera. The fixed 35mm framing also suits events and travel, where you frame by moving rather than zooming. The main trade-off is the fixed 35mm view and the lack of built-in stabilization.

The Sony E version weighs 1 lb 1.3 oz (490 g) and runs 4.05 in (102.9 mm) long; other versions may differ. Every version measures 2.99 in (76 mm) across. A 62mm screw-in filter attaches directly to the front thread.

A single 35mm focal length sets your working style. You frame by stepping closer or further back, which suits candid work at close range. The view takes in a person plus their surroundings, so environmental portraits keep their context. When you need a tighter or wider view, you move or switch lenses.

The f/1.4 maximum aperture is the main reason to buy it. A wide opening gathers more light, which can help handheld work under evening streetlights or in dim venues, though shutter speed, ISO and subject movement still govern the result. At portrait range it can help separate a subject from a cluttered background, depending on distances. Stopping down brings more of the scene into focus when you want context.

Thirteen aperture blades help keep the opening round when you stop down. Round openings render out-of-focus highlights smoothly, which matters in night scenes full of lamps and window lights.

Focus reaches 1.1 ft (35 cm), close enough to fill the frame with a meal or a market-stall detail. The maximum magnification of 0.14x tells you how large small subjects render.

None of the versions include image stabilization. Any shake correction must come from the camera body, so check whether yours offers sensor shift. Without any help, you rely on the f/1.4 aperture and a steady hold. Outdoors in daylight this rarely matters; indoors it does.

Weather sealing applies to the Sony E version; the other versions may differ. A fluorine coating on the front glass repels water and oil, so rain spots and fingerprints wipe off quickly. For the Sony E shooter, both help when a street day turns wet.

The four mount versions share the same optical formula, though sealing, focus mechanism and some measurements are confirmed only for Sony E.

The design includes three aspherical elements. Their shaped surfaces help correct distortion, the fault that curves straight edges, and spherical aberration. Two low-dispersion elements help reduce chromatic aberration, which shows as coloured fringes along high-contrast edges such as branches against a bright sky.

The Sony E version focuses internally; other mount versions may differ.