Mamiya AF 55–110mm f/4.5 Zoom Lens for 645AF Medium Format

Description
The Mamiya AF 55–110mm f/4.5 is a medium format autofocus zoom lens designed for the Mamiya 645AF system. Covering a versatile range equivalent to 34–68mm in 35mm terms, it’s ideal for portraits, landscapes, and general-purpose shooting. With internal focusing, a push-pull AF/MF clutch, and solid build quality, it offers flexibility and reliability for studio and field use.

Condition
Overall Condition: Excellent
Optics clean and free from haze or fungus. AF and zoom mechanisms smooth and responsive. 

Included

• Mamiya AF 55–110mm f/4.5 lens
• Front and rear lens caps
• Lens hood 

Collectors Notes
Introduced for the Mamiya 645AF system, this lens was one of the few zoom options available in medium format autofocus. Though not as sharp as prime lenses wide open, it performs well from f/8–f/11 and is prized for its convenience and build quality. A solid choice for digital backs or film shooters seeking a flexible zoom in the 645 format.

Key Features

• Focal length: 55–110mm (equiv. 34–68mm in 35mm format)
• Aperture range: f/4.5 to f/32
• Autofocus with manual override via clutch mechanism
• Minimum focus distance: 1.5m (4ft 11in)
• Filter thread: 77mm
• Internal focusing design
• Compatible with Mamiya 645AF, AFD, and Phase One systems
• Weight: approx. 880g

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