Ultra-wide Pentax 645 medium format lens, 22mm equivalent perspective with SMC coating for architecture and landscapes.
The Pentax SMC Pentax-A 645 35mm f/3.5 is a wide-angle prime lens for the Pentax 645 medium format SLR system. A-series designation indicates the aperture ring with A (Auto) position for program AE compatibility. Pentax 645 mount.
f/3.5 maximum aperture. 35mm focal length (equivalent to approximately 28mm on full frame for 6×4.5cm format). SMC (Super Multi Coating). Aperture ring with A position. Manual focus. Pentax 645 mount.
The Pentax-A 645 35mm f/3.5 is the wide-angle option in the Pentax 645 native lens range — providing a perspective equivalent to approximately 28mm on 35mm film. The A designation enables aperture-priority AE with compatible Pentax 645 bodies.
On the used market the Pentax-A 645 35mm f/3.5 is a specialist medium format wide angle. Condition checks: front element condition, aperture ring and A-position function, focus ring smoothness. Pentax 645 mount — Pentax 645 and 645N bodies.