Sigma's I-Series portrait prime — 65mm f/2 with premium metal build for Sony FE and L-Mount.
The Sigma 65mm f/2 DG DN Contemporary (I Series) was released approximately 2020 as a compact short telephoto prime for Sony FE-mount full-frame. Eleven elements in 9 groups. Nine aperture blades. 62mm filter thread. At approximately 405g. 0.55m MFD. Stepping motor AF. Metal barrel construction.
Eleven elements in 9 groups. Nine aperture blades. The 62mm filter thread. At approximately 405g. Minimum focus distance of 0.55m. Stepping motor for quiet AF. Metal exterior barrel (I Series premium build). De-clicked aperture ring. f/2 maximum aperture. Full-frame coverage (DG DN). Sony FE mount.
The I Series 65mm f/2 provides a portrait-range short telephoto for Sony FE: the 65mm perspective provides slightly more background compression than a standard 50mm while being shorter than the 85mm portrait focal length. The metal I Series construction with de-clicked aperture ring suits video production use. At 405g it is compact for full-frame.
On the used market the Sigma 65mm f/2 DG DN I Series Sony FE is affordable as a compact short telephoto prime. Condition checks: AF response, 62mm front element for marks, de-click aperture function. Full-frame Sony FE. Compatible with all Sony FE-mount full-frame and APS-C E-mount bodies.