Sirui’s New Wide-Angle Prime Lenses
Sirui has announced two new wide-angle prime lenses for its Aurora series, the 15mm f/1.6 and 24mm f/1.4, both designed for full-frame mirrorless cameras. Let’s start with the wider of the two, the Aurora 15mm f/1.6. According to Sirui, one of the main priorities during development was keeping optical distortion under control, which is important with ultra-wide lenses when shooting buildings and interiors. The lens uses 17 elements arranged in 12 groups, including three aspherical elements, three extra-low dispersion (ED) elements and four high-refractive-index (HRI) elements. There is also an 11-blade aperture, a de-clickable aperture ring and support for regular 77mm front filters. In terms of size, the lens measures 106.4mm in length, weighs 540g and can focus as close as 30cm, with a maximum magnification ratio of 1:12.5.
The Aurora 24mm f/1.4, meanwhile, offers a slightly narrower field of view and a faster maximum aperture. Inside, the lens has 14 elements in 11 groups, including three aspherical, four ED and three HRI elements. Just like the 15mm, it has an 11-blade aperture and a de-clickable aperture ring. Sirui also says it has worked on reducing focus breathing, which should be useful when recording video and changing focus between subjects. Both lenses use STM autofocus motors and support camera features such as eye tracking and subject detection on compatible bodies. The 24mm measures 106.6mm in length, weighs 550g and accepts 62mm front filters.
Both lenses come with weather-resistant construction and will be available for Sony E, Nikon Z, Leica L and Fujifilm X mounts. One thing worth mentioning is that the Fujifilm X version is intended for APS-C cameras, even though the lenses themselves are designed to cover full-frame sensors. For now, only the Sony E and Leica L versions are available, while Nikon Z and Fujifilm X versions are expected to arrive in the first quarter of 2027. Pricing is $499 for the 24mm and $599 for the 15mm.
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