Nikon Micro-Nikkor 200mm f/4 IF Instruction Manual - Page 4

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FOREWORD

Representing a true breakthrough in lens

design, the Micro-Nikkor 200mm f/4 IF is the

world's first 200mm "micro" lens. By utiliz-

ing internal focusing (IF), a system in which

the lens elements move inside the lens, there

is absolutely no increase in the overall length

of the lens barrel as the lens is focused closer.

Therefore, it is extremely easy to handle.

At its closest focusing distance of 0.71m

(2.34 ft.), the lens produces a 1:2 reproduc-

tion ratio. When the Nikon TC-301 Teleconvert-

er is used, full life-size images (1:1) are possi-

ble (with a decrease in the effective aperture to

f/8). This lens is very light-weight and has its

own built-in telescoping lens hood and detach-

able tripod mounting collar.

Because of its 200mm focal length, this lens

offers tremendous free-working distance, so

that you can take close-up shots of shy or

dangerous subjects, like butterflies or poison-

ous snakes, and still keep your distance. Even

at 1:2 magnification, the free-working dis-

tance is approximately 50cm (19.5 in.) be-

tween the front of the lens and the subject.

It also focuses to infinity, making it perfect

for use as a regular 200mm telephoto lens.

In addition, NIC (Nikon Integrated Coating)

is applied to the air-to-glass surfaces of lens

elements to reduce ghost images and flare and

improve contrast.