Olympus OM System Auto Bellows

The Olympus OM System Auto Bellows is a professional-grade precision instrument designed for extreme macro photography. As a core component of the legendary OM Macrophoto group, this bellows unit allows for continuous, high-magnification adjustments that go far beyond the capabilities of standard macro lenses. It features a dual-rail design for exceptional stability and ultra-smooth focusing. The "Auto" functionality maintains the automatic diaphragm linkage when used with compatible double cable releases, allowing the lens to stay wide open for bright focusing and stop down automatically at the moment of exposure. It is a masterpiece of Japanese engineering, offering the control and magnification needed for scientific, medical, and fine-art detail work.

Key Features

• Brand: Olympus

• Model: OM System Auto Bellows

• Compatibility: Olympus OM-mount SLR cameras and lenses

• Magnification: Variable high-magnification (depends on lens used)

• Rail System: Precision dual-rail for independent lens and camera movements

• Bellows: Light-tight, high-durability synthetic material

• Focusing: Rack-and-pinion drive for micro-fine adjustments

• Integration: Support for double cable release to maintain automatic aperture control

• Tripod Mount: Integrated block for balanced mounting on a tripod or macro stand

Condition Report

• Body: Used – Good condition. Shows normal signs of previous professional use.

• Bellows: Light-tight and in good used condition; no visible cracks or pinholes.

• Mechanics: Fully operational. Both the front and rear standards move smoothly along the rails, and the locking knobs secure tightly.

Specialist Note "The Olympus Auto Bellows is widely regarded as one of the best bellows systems ever made for any SLR. Its build quality is remarkable, and the smoothness of the geared movements allows for the incredibly precise focusing required at high magnifications. When paired with dedicated macro lenses like the Zuiko 80mm or 135mm, it becomes a world-class laboratory tool. It is an essential acquisition for any OM system enthusiast looking to explore the hidden world of microscopic detail."

What's Included

• Olympus OM System Auto Bellows Unit

Technical Specifications

• Accessory Type: Macro Extension Bellows

• Extension Range: Approx. 36mm to 198mm

• Dimensions: 74 x 133 x 185 mm