F-number

The numbers on the lens aperture ring and in the camera’s LCD that indicate the relative size of the lens aperture opening. The f-number series is a geometric progression based on changes in the size of the lens aperture, as it is opened and closed. As the scale rises, each number is multiplied by a factor of 1.4. The standard numbers for calibration are 1.0, 1.4, 2, 2.8, 4, 5.6, 8, 11, 16, 22, 32, etc., and each change results in a doubling or halving of the amount of light transmitted by the lens.

Flexible Program

Flexible Program function temporarily shifts an automatically selected shutter speed/aperture combination while maintaining correct exposure. That is, a desired shutter speed or aperture can be selected in Programmed Auto exposure mode.

Focus-Priority for autofocus

The shutter cannot be released until the subject is in focus.

Focus-Priority is given to Single Servo AF mode while Release-Priority is given to Continuous Servo AF.

Focus Tracking

Enables the camera to analyze the speed of the moving subject according to the focus data detected, and to obtain correct focus by anticipating the subject’s position—and driving the lens to that position—at the exact moment of exposure.

Focal length

The distance from the principal point to the focal point. In 35 mm-format cameras, lenses with a focal length of approximately 50 mm are called normal or standard lenses. Lenses with a focal length less than approximately 35 mm are called wide angle lenses, and lenses with a focal length more than approximately 85 mm are called telephoto lenses. Lenses which allow the user to continuously vary the focal length without changing focus are called zoom lenses.

Front-Curtain Sync

The flash fires an instant after the front curtain of a focal plane shutter has completed its travel across the film plane. This is the way the F5 operates with the flash sync mode at Normal Sync. See also “Rear-Curtain Sync.”

Appendix D

D-3

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Kodak DCS 700 Number, Flexible Program, Focus-Priority for autofocus, Focus Tracking, Focal length, Front-Curtain Sync

DCS 700 specifications

The Kodak DCS 700 series, introduced in 1996, marked a significant milestone in the evolution of digital photography. Targeted at professional photographers, this groundbreaking camera system was one of the first digital single-lens reflex (DSLR) cameras to deliver high-quality images comparable to traditional film cameras.

One of the standout features of the Kodak DCS 700 series was its remarkable resolution for the time. It boasted a 6.2-megapixel sensor, allowing photographers to capture images with stunning clarity and detail. This high resolution was ideal for various applications, from commercial photography to scientific imaging. The DCS 700 utilized a charged-coupled device (CCD) sensor, which was known for its excellent light sensitivity and image quality, especially in low-light conditions.

The DCS 700 was designed with a robust construction, resembling traditional film cameras, which made it more comfortable for professionals accustomed to using film. It featured a familiar layout, including a mirror reflex mechanism that allowed photographers to view exactly what the lens was capturing. This design ensured that transitioning to digital photography felt natural for many users.

Another key feature of the DCS 700 series was its ability to shoot in RAW format, enabling photographers to store images with minimal compression. This capability provided greater flexibility in post-processing, allowing for adjustments in exposure, color balance, and other critical aspects without losing image quality. Additionally, the camera came equipped with an advanced metering system to accurately gauge exposure, ensuring well-balanced images even in challenging lighting situations.

The Kodak DCS 700 series also came with integrated connectivity options, allowing users to transfer images directly to computers for quick editing and sharing. This feature was particularly appealing for professionals in fast-paced environments, where speed and efficiency were paramount.

Battery life was another significant aspect, as the DCS 700 series utilized rechargeable batteries that offered extended shooting sessions, a crucial feature for those covering events or long assignments.

While the DCS 700 series might be considered outdated by today’s standards, it laid the groundwork for future DSLR innovations and is remembered as a pivotal development in the transition from film to digital photography. As a testament to its impact, many professionals still reflect on the DCS 700 series as a reliable tool in their early digital photography endeavors, showcasing Kodak's commitment to advancing imaging technologies.