Nikon Micro-Nikkor 200mm f/4 IF - Manual (Page 7)

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.