Overview

The Porst Tele X-M D 135mm f/2.8 GMC is a compact 135mm lens, likely a rebranded Enna Tele-Ennalyt with 5 elements in 5 groups (Spotmatic). Users report good results wide open at f/2.8-4 (dr.volkan) and praise its image quality (martyn_bannister, KhanX). Build is small and simple, with no country of origin marked. It suits photographers seeking a lightweight, fast telephoto for manual focus use on mirrorless or DSLR systems.