Olympus Zuiko 75–150mm f4 Zoom Lens – OM Mount Manual Focus Tested

Description
The Olympus Zuiko Auto-Zoom 75–150mm f/4 is a compact manual focus telephoto zoom lens designed for Olympus OM-mount 35mm SLR cameras. With a constant f/4 aperture and smooth mechanical operation, it delivers sharp, contrast-rich images across its range. Ideal for portraiture, travel, and general telephoto use, it’s lightweight and well-balanced for handheld shooting. Compatible with all Olympus OM bodies and easily adapted to digital mirrorless systems.

Condition

• Optics clean, no haze, fungus or scratches (minor dust)
• Aperture blades clean and oil-free
• Zoom and focus rings smooth and responsive
• Mount clean and undamaged
• Barrel shows light cosmetic wear consistent with age
• Tested on OM body (if applicable)

Included

• Olympus Zuiko Auto-Zoom 75–150mm f/4 lens (OM mount)
• Front and rear caps
• Original case (very tatty externally)

Collectors Notes
This lens was part of Olympus’s compact zoom lineup in the late 1970s and early 1980s. Despite its modest zoom range, it offers excellent optical performance and a constant aperture throughout. The push-pull zoom mechanism is intuitive, and its compact size makes it ideal for travel kits. A solid choice for OM system users and vintage lens enthusiasts.

Key Features

• Focal length: 75–150mm
• Maximum aperture: f/4 (constant)
• Mount: Olympus OM bayonet
• Manual focus and aperture control
• Minimum focus distance: approx. 1.5m
• Filter thread: 49mm
• Aperture range: f/4 to f/22
• Push-pull zoom mechanism
• Lightweight metal construction
• Made in Japan, circa late 1970s

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