-EXPOSURE-continued---------------

Depth of Field

When you shoot at a certain aperture and focusing distance, you will find that not only the main subject but objects in a cer- tain distance range in front of and behind it will be sharp in the final photograph . Objects beyond this range become increas- ingly out of focus . This "in-focus zone" is known as depth of field . When this zone of sharpness is large, the depth of field is said to be deep; when it is small, the depth of field is said to be shallow.

The following is true of depth of field :

1)The smaller the shooting aperture (i.e. the larger the numeri- cal f-number), the deeper the depth of field ; the larger the aperture, the shallower the depth of field .

2)The farther away the subject is from the lens, the deeper the' depth of field becomes; the closer to the lens, the shallower the depth of field .

3)The longer the focal length of a lens, the shallower the depth of field at each f/stop ; the shorter the focal length, the deeper the depth of field .

4)There is greater depth of field behind the main subject than

in front of it.

The depth of field at each aperture is indicated on the lens by a set of color-coded lines ® (corresponding to the colors of the f-numbers on the aperture ring) which are used in conjunction with the distance scale @ . The range is indicated by the dis- tance between the lines.

Note: Certain Zoom -Nikkor and special-purpose Nikkor lenses do not have a depth-of-field scale.

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Nikon F3AF instruction manual Depth of Field
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F3AF specifications

The Nikon F3AF, introduced in 1983, is a landmark camera in the history of photography, notable for its pioneering autofocus capabilities. As one of Nikon's first professional autofocus cameras, the F3AF combines the robust features of the F3 series with advanced technology to offer photographers a powerful tool for capturing high-quality images.

One of the standout features of the F3AF is its autofocus system, which employs a sophisticated phase detection mechanism. This represents a significant leap forward from the manual focus cameras that dominated previous generations. The system can quickly and accurately lock onto subjects, making it easier for photographers to capture sharp images, particularly in dynamic or fast-paced situations.

The F3AF retains the iconic design and build quality of the F3, characterized by its rugged, weather-sealed construction that ensures durability in various shooting environments. The camera body features a comfortable grip and a solid metal chassis, appealing to professionals who require reliability and performance in the field.

Another key characteristic is its compatibility with a wide range of Nikkor lenses, including the autofocus Nikons. This flexibility allows photographers to choose the appropriate lens for their specific needs, whether they are shooting landscapes, portraits, or sports. The camera features a unique "Auto Focus" mode which works in tandem with specialized AF lenses to streamline the focusing process.

In terms of exposure modes, the F3AF offers automatic exposure through its TTL (Through The Lens) metering system. This capability allows for accurate exposure readings, helping photographers achieve optimal results in various lighting conditions. Additionally, the camera features multiple shooting modes, including manual, aperture priority, and shutter priority, accommodating the preferences of both novice and seasoned photographers.

Furthermore, the F3AF supports an array of accessories, including motor drives and special viewfinders, allowing photographers to enhance their shooting experience. The camera's electronic viewfinder provides a bright and clear display, giving users a precise view of their composition.

Despite being released decades ago, the Nikon F3AF remains a respected choice among film enthusiasts and collectors, representing a significant achievement in photographic technology. Its blend of innovative autofocus functionality, robust design, and versatile features make it an enduring symbol of Nikon's commitment to excellence in the world of photography.
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