Nikon AI-S Micro-NIKKOR 105mm f-2.8 User Manual
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you’re focusing at close distances. And of course
Nikon has assured good performance from infinity
down to the closest focusing distance (0.41m,
1.34ft) with a 1;2 reproduction ratio, even at full
aperture, with its Close-Range Correction System.
With NIC (Nikon Integrated Coating) applied to the
air-to-glass surfaces of the lens element, not only do
you avoid ghost images and flare, but color rendition
is also improved.
And with suitably equipped Nikon cameras, this lens
offers “Automatic Maximum Aperture Indexing”
(AI), permitting full aperture exposure measurement
through the dual functioning of the meter coupling
ridge and automatic diaphragm. You can get the
same operation with non-AI type Nikon cameras by
using the lens’ metering coupling shoe.
For further focusing extension from 1:2, just attach
the Auto Extension Ring PN-11, a Teleconvertor or
a bellows attachment.