Nikon AI Micro-NIKKOR 105mm f-4 - Manual (Page 17)

With Built-in TTL Metering
The Micro-Nikkor has a fully automatic dia­
phragm with settings from f/4 to f/32. The
Micro-Nikkor couples fully to the thru-the-
lens meter of any F/F2 Nikon Photomic or
other Nikon/Nikkormat cameras for full aper­
ture exposure measurement over the entire
range of aperture settings. Note that when
this lens is used with non-AI cameras, con­
ventional “manual” maximum aperture in­
dexing is required.
When close-up attachments such as a PN ring
or bellows are used, the exposure measure­
ment method is shown in the table on the left.
When the lens is mounted in the reverse posi­
tion, the stop-down method should be used.
See the instruction manual supplied with your
camera or Photomic viewfinder for details.
Caution; When the stop-down method is used at
smaii apertures, a finder eyecup should be attached
to the eyepiece to ensure complete exclusion of
stray light.