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Focus lock

The AF-Nikkor lens has two focus lock buttons ® on the lens barrel, one on the side and the other on the A-M switch . You can use either of these buttons, depending on your choice of hori - zontal - or vertical-format shooting. During autofocus operation , depressing the focus lock button allows you to lock in the auto- focus distance setting on the lens. Autofocus begins once again as soon as you release the button .

To take pictures with the main subject off-center, first center the main subject within the focusing frame in the viewfinder, depress the shutter release button halfway and make sure both focus indicators light up ; then depress the focus lock button and, while holding it in, recompose and shoot.

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Notes:

Ii With the focus lock butlon held down, the in -focus indication (~<III) may change in the following two cases: 1) when you once again depress the shutler relea se button halfway after the camera 's auto- matic 16-sec. switch has turned off the indication, or 2) just after you have taken a picture. However, regardless of the focus indication change, the distance set on the ler)s is still the same as when you depressed the focus lock button.

2)When taking pictures in the automatic exposure mode with the main subject off-center, you must also depress the memory lock button ® to get the correct exposure. For more information, refer to page 40.

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Nikon F3AF instruction manual Focus lock
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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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