NOTE: Some artifacts in between lens elements that may show in image.
The Olympus 75-150mm f/4 Zuiko Auto-Zoom is a manual focus telephoto zoom lens designed for Olympus OM-mount 35mm SLR cameras, offering useful telephoto reach well suited to portraits, candid photography, and moderately distant subjects during the film SLR era. As part of the compact Zuiko lens lineup that helped define the smaller, lighter OM camera system, this zoom reflects Olympus’s design philosophy of keeping even zoom lenses notably more compact than many competing manufacturers’ offerings of the same era.
The 75-150mm zoom range provides useful telephoto flexibility, allowing photographers to adjust framing between a moderate and more substantial telephoto reach without needing to carry multiple fixed focal length lenses. This versatility made it a practical choice for portrait photographers who wanted to fine-tune their composition and background compression, as well as photographers seeking general telephoto reach for candid shots and moderately distant subjects.
The “Auto-Zoom” designation identifies this lens as part of Olympus’s automatic diaphragm zoom lineup, meaning the aperture remains wide open for bright, easy viewing and focusing through the viewfinder, then automatically stops down to the selected aperture at the moment of exposure, streamlining the shooting process compared to fully manual, non-auto lens designs. Its constant f/4 aperture throughout the zoom range provided consistent exposure settings regardless of focal length, a practical convenience for photographers adjusting framing mid-shoot.
Built with the solid all-metal construction characteristic of vintage Zuiko optics, this lens features a smoothly damped manual focus and zoom ring along with a manual aperture ring with click-stops, giving photographers precise, tactile control over focus, framing, and exposure. The Olympus OM mount allows this lens to attach directly to Olympus OM-series film SLR bodies, and with the appropriate adapter, it can also be mounted on many modern mirrorless camera systems, giving it continued relevance for photographers who enjoy shooting with manual vintage optics or adapting classic Zuiko glass to contemporary digital bodies.
Specs:
– Focal length: 75-150mm
– Maximum aperture: f/4 (constant)
– Lens mount: Olympus OM mount
– Aperture type: Automatic diaphragm (Auto-Zoom)
– Focus type: Manual focus
– Aperture control: Manual aperture ring with click-stops
– Construction: All-metal barrel and mount

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