Viltrox PFU RBMH 85mm f/1.8 STM for Sony E

The Viltrox PFU RBMH 85mm f/1.8 STM for Sony E is a versatile, fast-aperture short-telephoto prime lens designed for full-frame Sony E-mount mirrorless cameras, delivering a 127.5mm equivalent focal length when used on Sony’s APS-C bodies. Its bright f/1.8 maximum aperture excels in difficult lighting conditions while also benefiting shallow depth-of-field techniques, making it well suited to portraiture and other subject-isolating work.

Optically, the lens is built from 10 elements in 7 groups, including one extra-low dispersion element and four elements made from highly transparent glass, working together to reduce chromatic and spherical aberrations for well-corrected imagery with accurate color and high sharpness. Viltrox’s HD Nano multi-layer coating is applied to suppress flare and ghosting for improved contrast in strong lighting conditions, and a rounded 9-blade diaphragm contributes to smooth, pleasing bokeh at an angle of view of 28.5 degrees.

Autofocus is handled by an STM (stepping motor) system, delivering precise, nearly silent focusing performance, with the lens capable of focusing on subjects as close as 2.62 ft. (0.8m), yielding a 0.125x maximum magnification (1:8 macro reproduction ratio). As an STM version, the lens uses an electromagnetic aperture iris controlled entirely from the camera body, with no manual aperture ring. Electronic contacts convey EXIF data to the camera and allow for in-camera aperture selection, and an onboard micro-USB port permits firmware updates.

Build quality centers on a durable yet lightweight metal construction, measuring approximately 3.1 x 3.6 in. (diameter x length) and weighing approximately 1.4 lb (636g). The lens accepts a 72mm filter thread, and an included lens hood helps keep flare at bay. It does not include optical image stabilization.

As a full-frame E-mount lens, the Viltrox PFU RBMH 85mm f/1.8 STM delivers its full angle of view on Sony full-frame bodies while remaining compatible with Sony APS-C E-mount cameras at a 127.5mm-equivalent effective focal length.

Key Features
– 85mm f/1.8 short-telephoto prime lens for Sony full-frame E-mount
– 10 elements in 7 groups, including 1 extra-low dispersion element and 4 highly transparent glass elements
– HD Nano multi-layer coating
– STM (stepping motor) autofocus
– Electromagnetic aperture iris (camera-controlled; no manual aperture ring)
– Rounded 9-blade diaphragm
– Electronic contacts for EXIF data and in-camera aperture selection
– Micro-USB port for firmware updates
– Minimum focusing distance of 2.62 ft. (0.8m); 0.125x maximum magnification
– 72mm filter thread
– No image stabilization
– Durable, lightweight metal construction (approximately 636g)
– Includes lens hood
– Compatible with Sony full-frame and APS-C E-mount cameras