Pentax 80-200mm f4.5 SMC Pentax-M Lens

The Pentax SMC Pentax-M 80-200mm f/4.5 is a manual-focus telephoto zoom lens built for Pentax K-mount 35mm film SLR cameras, part of Pentax’s well-regarded M-series lens lineup known for its compact, lightweight construction paired with Pentax’s Super-Multi-Coated (SMC) optical coating. It was designed to complement Pentax’s smaller M-series camera bodies, such as the ME and MX, offering photographers of the era a telephoto option that matched the compact philosophy of those bodies.

The lens covers an 80-200mm focal range with a constant maximum aperture of f/4.5 throughout the zoom range, simplifying exposure since brightness doesn’t shift as the lens is zoomed, a practical advantage over variable-aperture designs common at this focal length. This span made it a versatile telephoto option for portraiture at the shorter end and more distant subjects toward 200mm, a popular telephoto zoom range during the film SLR era.

The SMC (Super-Multi-Coated) designation refers to Pentax’s proprietary multi-layer lens coating, which helps reduce flare and ghosting while improving contrast and color transmission, a hallmark of Pentax’s respected optical quality from this period. As a fully manual lens, focus and aperture are controlled entirely by hand via the lens barrel, with no autofocus or electronic communication with the camera body, consistent with the manual-focus Pentax K-mount SLR bodies it was designed to pair with.

Build quality reflects Pentax’s M-series design philosophy, emphasizing a notably compact and lightweight construction relative to typical telephoto zooms of the era, making it an appealing option for photographers who valued a smaller, more portable camera and lens combination. The lens features a metal barrel and mount construction consistent with Pentax’s respected build standards from this period.

As a K-mount lens, the SMC Pentax-M 80-200mm f/4.5 is compatible with Pentax K-mount film SLR bodies and can generally be used in manual mode on later Pentax K-mount digital SLR bodies as well, though autofocus will not function since this is a fully manual optic.

Key Features
– 80-200mm constant f/4.5 telephoto zoom for Pentax K-mount
– SMC (Super-Multi-Coated) optics
– Fully manual focus and aperture control
– Compact, lightweight construction typical of Pentax’s M-series lenses
– Compatible with Pentax K-mount film SLR and select digital SLR bodies (manual mode)