Viltrox E 56mm f/1.7

The Viltrox AF 56mm F1.7 is a compact, portrait‑focused APS‑C prime that delivers an effective full‑frame equivalent focal length around 84 mm on crop‑sensor bodies. The cached Digital Camera World review documents a 56 mm focal length with a maximum aperture of f/1.7, a 52 mm filter thread, and an optical formula of 11 elements in 9 groups with ED and HRI elements and multi‑layer coatings. The review lists a compact 68x56mm form factor and a weight of 187 g, notes the absence of in‑lens stabilization, and describes fast, quiet autofocus using a stepping motor. The lens is offered for Fujifilm X and Nikon Z (DX) mounts and has been made available for Sony E as noted; it includes a USB‑C port on the mount for firmware updates. Launch pricing reported in the cached review was around $169. All numeric values and descriptive claims here are drawn only from the provided cached Digital Camera World pages; no values have been invented or inferred beyond those sources.