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Phase One 645 AF manual When Auto Focus is Failed

Models: 645 AF

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in focus

turn focus ring clockwise

turn focus ring counter clockwise

Manual focusing using the focus mark (Focus confirmation method)

With this camera, the focus mark lights in the viewfinder’s LCD when the picture is in focus. With the shutter release button half-pressed, turn the lens focusing ring to focus on the subject. When the subject is in focus, the focus mark lights in the viewfinder’s LCD.

If is lit in the viewfinder’s LCD, the camera is focused on a point behind the object. If is lit, the camera is focused on a point in front of the object.

-Use the focus mark when taking photos in manual focus mode or using the M645 manual lens.

-If you adjust focus using the focus mark with an M645 lens, make sure to open the aperture. You can use this function with a lens of f/5.6 aperture or higher.

-You can set the camera so that only the focus mark is displayed. Custom settings C-18

When Auto Focus is Failed

The auto focus function requires contrast on subject. Auto focusing may fail to achieve focus with certain subjects described below. In such cases, either switch to the manual focus mode and focus manually or focus an object at the same distance as the object you want to photograph, lock the focus using the focus lock mechanism, then take a picture.

•Low-contrast subject (blue skies, white walls and other objects)

•Two or more objects overlapping at different distances within the focus frame (animals in cages, etc.)

•Subjects with continuous repeated patterns (building exteriors, blinds, etc.)

•Extremely backlit reflective subjects (car bodies, water surfaces, etc.)

•Or when the subject is far smaller than the focus frame

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Phase One 645 AF manual When Auto Focus is Failed
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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.