Nikon Micro-Nikkor 200mm f/4 IF User Manual
Page 20
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without TTL Metering
At close ranges (reproduction ratios greater than
1:10), the amount of light reaching the film decreases
as the extension between the lens and film plane
increases. When non-TTL measurement is used for
this range, the result is underexposed photographs
unless compensation has been made for this decrease.
The table at the right gives the exposure factors (com
pensation values) with exposure increase in f/stop for
non-TTL measurement at reproduction ratios greater
than 1:10. The table at the right is for use when
various extension equipment is attached*.
To calculate the necessary correction in shutter speed
rather than in aperture value, multiply a given ex
posure factor by the exposure time. For instance,
if the normal exposure at a 1 ;4 reproduction ratio is
1/8 second, the correct shutter speed is 1/8 x 2 =
1 /4 second.
*When you use the lens by itself or attach a teleconverter, such
as the TC-301, exposure compensation is not necessary.