Olympus 135mm f3.5 E.Zuiko Auto-T Lens

The Olympus 135mm f/3.5 E.Zuiko Auto-T is a manual focus telephoto prime lens built for the Olympus OM-mount system, offering a classic telephoto focal length in the compact, lightweight design that defined Olympus’s OM lens lineup. The “E.Zuiko” designation reflects Olympus’s tiered optical formula classification system, denoting the specific lens element and coating configuration used in this particular telephoto design.

The 135mm focal length provides a solid telephoto reach well-suited to portraits, candid photography, and general subject isolation, allowing photographers to fill the frame with distant subjects while maintaining a comfortable working distance. Its f/3.5 maximum aperture, while more modest than faster telephoto options, kept the lens compact and lightweight, aligning with Olympus’s broader OM system philosophy of minimizing size and weight without sacrificing optical performance.

The “Auto-T” designation refers to Olympus’s automatic diaphragm mechanism paired with its telephoto classification, allowing the aperture to remain wide open for focusing and viewing before automatically stopping down to the selected aperture at the moment of exposure. This lens benefits from Olympus’s proprietary lens coatings of the era, helping to control flare and ghosting while maintaining good contrast and accurate color rendition, qualities that have contributed to the lasting reputation of Zuiko optics among film photography enthusiasts.

Built with the all-metal, compact construction characteristic of Olympus’s OM lens lineup, the lens features a smoothly damped focus ring and a manual aperture ring with click-stops for precise, tactile control. Its OM lens mount allows it to attach directly to Olympus OM-series film SLR bodies, and with the appropriate adapter, it can also be adapted to numerous modern mirrorless camera systems, giving it continued appeal for photographers who enjoy shooting with compact, classic manual focus telephoto optics.

Specs:
– Focal length: 135mm
– Maximum aperture: f/3.5
– Lens mount: Olympus OM mount
– Diaphragm: Auto-T (automatic diaphragm, telephoto classification)
– Focus type: Manual focus
– Aperture control: Manual aperture ring with click-stops
– Construction: All-metal barrel and mount