Phase One 645 AF manual Measuring light Exposure Metering, Exposure Warnings

Models: 645 AF

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CF X

 

M

 

Tv

 

Av

 

P

 

SET

A

AEL

B

 

Average/spot auto

Exposure metering is performed after automatically

 

exposure metering

selecting average/spot exposure metering.• Depending

 

 

on the subject conditions, center-weighted average/spot

 

 

exposure metering is selected automatically, and the

 

 

correct exposure is measured.

 

 

• Spot exposure metering is automatically selected when

 

 

the brightness of the spot exposure metering range

 

 

becomes darker than the brightness of the entire screen.

 

 

• If there is very little difference between the spot exposure

 

 

metering value and center-weighted average exposure

 

 

metering value, the correct exposure level is obtained as

 

 

the intermediate value.

 

Center-weighted

The average brightness of the entire screen is measured,

 

average/spot

emphasizing the center of the screen.

 

exposuremetering

 

 

 

 

 

Center spot exposure

The brightness of an area equivalent to 7.6% at screen

 

metering

center is measured, and the exposure is determined. The

 

 

circle at screen center serves as a general guideline. This

 

 

mode is suited to measuring subjects with strong contrasts

 

 

or measuring only screen portions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE:

you can change the amount of time the metered value is shown by entering Custom Settings C-04.

3.3Measuring light – Exposure Metering

1.Exposure mode mark is displayed when the exposure mode button A is pressed. Since three different exposure modes are displayed sequentially when either the front or rear dial is turned, select an appropriate exposure mode.

2.Press the SET button or exposure metering mode button A to enter the setting.

Exposure Warnings

With an inappropriate exposure setting, when shooting subjects that are too light or dark, the user is warned by the flashing external LCD or the LCD inside the viewfinder.

At such times, the correct exposure cannot be obtained.

Warnings that the exposure is outside the metering range

• Program AE (P)

The shutter speed and f-number blink.

Aperture priority AE (Av) The shutter speed blinks.

Shutter priority AE (Tv) The f-number blinks.

Manual mode (M)

The exposure metering value difference is displayed.

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Phase One 645 AF manual Measuring light Exposure Metering, Exposure Warnings

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.