Exposure mode

 

Shutter speed

Aperture

 

P

Program AE

Automatically set by

Automatically set by

 

 

 

camera to 1/60 sec.

camera

 

Av

Aperture priority AE

when the metered

Any aperture

 

shutter speed is 1/60

 

 

 

 

 

 

 

or slower, and 1/125

 

 

 

 

when it is 1/125 sec.

 

 

 

 

or faster.

 

 

 

 

 

 

 

Tv

Shutter priority AE

Automatically set

Automatically set by

 

 

 

by camera to 1/125

camera

 

 

 

when the set shutter

 

 

M

Manual mode

speed is 1/125 sec.

Any aperture

 

or faster.

 

 

 

 

 

 

 

 

 

 

X

Synchro mode

1/125 sec.

Any aperture

 

 

 

 

 

 

NOTICE:

With TTL flash photography, the reflection of the flash is metered and the intensity of the flash is adjusted automatically, so TTL flash photography may not be able to suit to all conditions. In the cases described below, we recommend that you use a flashmeter to check the intensity of the flash or to use a manual flash setting.

Example:

(1)When the size of the subject you want to light with the flash is relatively small within the picture

(2)When the background behind the subject is extremely bright or when there is a strongly reflective object in the background

(3)When the background behind the subject is extremely dark (outdoors at night, etc.)

(4)For flash photography with a narrow film latitude

1.While in the P or Av modes, the camera can be set to release the shutter at the metered value, even the background behind the subject is dark. Custom settings C-24.

2.The sync. speed in the X mode can be set between 1/40 and 1/125 seconds. Custom settings C-23.

* When the shutter speed is set to 1/2 increments, the sync. speed can be set between 1/45 and 1/125 seconds.

Rear Curtain Syncro

When a moving subject has been shot under this function, the flash of light appears after the moving subject.

Rear curtain sync mode

Front curtain sync mode

This function is set by Custom function setting.

Custom setting C-27.

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Phase One 645 AF manual Example, Rear Curtain Syncro

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.