Nikon 1683, FM2 Body only Duplication work and photomicrography, + more exposure -,less exposure

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. Exposure 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
		necessary

•The exposure compensation values listed below are reference data obtained when general-purpose film was used . With color reversal film or microfilm for duplication work , it is advisable to take additional shots with ± one -stop exposu re compensation as these films have very 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

continuousgradation
Copy work	Full-aperture or	Approx. +1 to +2
	stop-down	stops for black letters
Documents and
drawings of high		on white background;
contrast		approx. -112to -1
		stop for white letters
		on black background.

Micro-Nikkor or AF Micro-Nikkor lens'

Cable release

For high-contrast subjects, use of an 18% reflectance gray card in determining exposure is recommended. With thecard, no exposure compensation is required regardless of whether the background is black or white.

General film with con-

.tinuous gradation

Slide

duplication Film of documents Stop-down and drawings

photographed

Photo-

micrography Prepared specimen Stop-down

+"more exposure; -,'less exposure

Approx. +1 to +2 stops

Approx. +1-112to

+2-1/2stops for black

letters on white background oto approx. -1 /2stop for white letters on black background

Approx. + 1 stop

Micro-Nikkor or AF Micro-Nikkor lens'

Nikon Slide Copying Adapter PS-6 Nikon Bellows Focus- ing Attachment PB-6

Cable release

Microflex PFX

When using Nikon Slide Copying Adapter PS-6, set the flood lamp 30cm away from its opal plate.

Generally, results come out better with more exposure in photomicrography. The compen- sation valueon theleft is onlya guide; determine the compensation value by test shooting.

'Setthe lens'A-M ring to "M."

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