Manual focusing

1. Switch to “M” (manual focus mode).

Turn the focus mode selector lever and set it to “M” (manual focus mode). Appears on the external LCD panel.

2. Manual Focus Operation for Telephoto and Zoom lenses.

All Mamiya 645 AF Telephoto and Zoom lenses can be switched from Auto Focus to Manual Focus by sliding the focusing ring on the lens FORWARD until it clicks. When this is done, the “Auto Focus” inscription on the lens barrel is covered and the lens can then be focused manually. When the FOCUSING RING is set in this position the external LCD display on the top of the camera will show. It is not necessary to set the FOCUS MODE SELECTOR on the body to “M”. To switch back to auto focus, simply slide the focusing ring BACK towards the camera and the “Auto Focus” inscription on top of the lens will again be visible.

This method applies to Mamiya 645 AF Telephoto and Zoom lens only.

3. Adjust the focus.

Turn the lens focusing ring A until the subject is in focus. When your motive is in focus the focus mark lights in the viewfinder LCD.

-When a lens with the focus mode selector is attached and the focus mode selector lever of the camera body is set at “S” or “C”, you can change focus modes between automatic and manual with the selector of the lens.

-To use the auto focus function, both the camera body and the lens have to be set in the auto focus mode.

-When either the camera body or the lens is set in the manual focus mode, auto focus does not function.

-See the instruction manual for each lens for the way to switch focus modes on the lens.

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Phase One 645 AF Manual focusing Switch to M manual focus mode, Manual Focus Operation for Telephoto and Zoom lenses
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645 AF specifications

The Phase One 645 AF is a high-end medium format camera system designed for professional photographers seeking exceptional image quality and versatility. With its robust feature set and advanced technologies, it has become a preferred choice for commercial, portrait, and landscape photography.

At the heart of the 645 AF is its large 645-format sensor, which captures images at a remarkably high resolution. This sensor size not only ensures more detail in each shot but also provides superior dynamic range, allowing photographers to reproduce subtle lighting nuances in their work. The high pixel count is complemented by Phase One’s exceptional image processing capabilities, making it an ideal choice for large print production and high-fidelity image requirements.

One of the defining characteristics of the Phase One 645 AF is its modular design. Photographers can easily swap out different components, such as lenses and digital backs. This flexibility allows users to tailor their camera system to specific shooting requirements, whether that means switching to a high-resolution back for studio work or a faster one for dynamic scenes. The system is compatible with a wide range of Phase One lenses, which are known for their sharpness and optical quality.

The camera features a fast and accurate autofocus system, making it suitable for a variety of shooting conditions. With multiple focus points and advanced tracking capabilities, the 645 AF ensures that subjects are captured with precision, even in fast-paced environments. Additionally, the camera supports various shooting modes, including continuous shooting, which is crucial for capturing fleeting moments.

Another impressive technological advancement of the 645 AF is its robust build quality. Designed to withstand the rigors of professional use, the camera employs weather-sealed construction, ensuring reliable performance in challenging conditions. The ergonomic design provides comfortable handling during long shoots, making it a practical choice for professionals.

Moreover, the Phase One 645 AF integrates seamlessly with the company's Capture One software, allowing photographers to process their images efficiently. This software offers extensive editing capabilities, ensuring that images can be fine-tuned to meet artistic standards.

In summary, the Phase One 645 AF stands out in the world of medium format photography. Its impressive resolution, modular design, superior autofocus capabilities, and rugged construction make it a powerful tool for photographers who demand the very best. By combining state-of-the-art technology with a commitment to quality, the Phase One 645 AF continues to be a benchmark in professional photography.
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