Duplication Work And Photomicrography - Nikon FM2 Instruction Manual

Duplication work and photomicrography
In copy work, slide duplication, and photomicrography, you
cannot obtain correct exposu re by simply referring to the FM2 's
exposure meter display because these types of photography
represent unusual contrast situations. Expos ure compensation
is required. Shown here is the table of the relationship between
specific photo types and proper exposure. Since this is meant
to be a guide, in practice you should make further. compensation
by experimentation until you achievelthe proper results.
Subject
Method of exposure
Exposure
measurement compensation
Photographs and
Compensation not
pictures with
continuous gradation
necessary
Copy work
Full-aperture or Approx. + 1 to +2
Documents and stop-down stops for black letters
drawings of high on white background;
contrast approx. -112 to -1
stop for white letters
on black background.
General film with con-
Approx. + 1 to +2 stops
.tinuous gradation
Slide Approx. +1-112 to
duplication Film of documents Stop-down + 2-1/2 stops for black
• The exposure compensation values listed below are reference
data obtained when general-purpose film was used . With color
reversal film or microfilm for duplication wo rk , it is advisable to
take additional shots with ± one -stop exposu re compensation
as these films have ve ry small exposure latitude .
• To avoid vibration, you can make the exposure by turning the
illumination on and off.
• It is advisable to use a cable release to avoid camera vibration .
Required accessories Remarks
For high-contrast subjects, use of an
18%
Micro-Nikkor or AF reflectance gray card in determining exposure
Micro-Nikkor lens' is recommended. With the card , no exposure
Cable release
compensation is required regardless of whether
the background is black or white.
Micro-Nikkor or AF
Micro-Nikkor lens'
Nikon Slide Copying
When using Nikon Slide Copying Adapter PS-6,
Adapter PS-6
and drawings letters on white background set the flood lamp 30cm away from its opal plate.
Nikon Bellows Focus-
photographed
o
to approx. -1 /2 stop for
white letters on black
background
Photo-
Prepared specimen
Stop-down Approx. + 1 stop
micrography
+ "
more exposure; -,' less exposure
ing Attachment PB-6
Cable release
Microflex PFX
Generally, results come out better with more
exposure in photomicrography. The compen-
sation value on the left is only a guide; determine
the compensation value by test shooting.
'Set the lens' A-M ring to "M."
25