With a focal length equivalent to approximately 120mm in 35mm format, this lens is perfectly suited for portraiture. It provides a natural perspective and a flattering compression of facial features, making it a staple for professional medium-format photographers. Specifically engineered for the Pentax 645 system, this lens delivers a large image circle that ensures edge-to-edge sharpness and minimal vignetting. The optical design produces high-resolution images that fully leverage the superior detail of the 645 film and digital sensors. The relatively bright f/3.5 maximum aperture allows for beautiful background bokeh and facilitates precise focusing through the viewfinder. Despite its telephoto capabilities, the lens maintains a compact and lightweight design, ensuring excellent handl.