Traditional Culture Encyclopedia - Photography and portraiture - Nikon AF80
Nikon AF80
In the AF era, Nikon has released five f/2.8 constant aperture zoom lenses in mass production, which is known as the "steel gun" series. Among them, the first-generation "steel gun" AF 80-200mm f/2.8ED and the second-generation product AF 80-200mm f/2.8 ED all adopt the single-ring push-pull zoom mode. The difference is that the second generation of "steel guns" began to be marked with letters indicating the identity of D series. The technical meaning of the "D" mark is that the lens can transmit distance information when using the flash lamp of our factory. The third generation "steel gun" AF 80-200mm f/2.8D ED New adopts the mainstream double-loop control design in the autofocus era. This mirror is still in production, commonly known as "small steel cannon" in the photography circle. The "big steel gun" admired in this paper is the fourth generation product of this series. It is the earliest model in the "steel gun" group that adopts ultrasonic driving mechanism. It is almost perfect in optics and machinery, and the weight also creates the limit of the lens in this department.
The lens group of steel gun (DGP) hasn't changed much, but the lens structure has been greatly improved, and the image quality is better. The large steel cannon adopts ultrasonic motor and 9 circular apertures, which adds dustproof and waterproof design. Luxurious configuration and large body make it a large steel gun (DGP).
The large steel cannon adopts silent wave motor and ultrasonic motor, which can be obviously felt in practical use, and the focusing speed can be described as fast. In addition, Nikon D40 and D40x have no lens body drive function, and lenses with built-in motors, such as large steel guns, can achieve autofocus on a SLR without a body motor.
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