Nikon Nikkormar FT3 Руководство по эксплуатации - Страница 16

Просмотреть онлайн или скачать pdf Руководство по эксплуатации для Цифровая камера Nikon Nikkormar FT3. Nikon Nikkormar FT3 32 страницы.

EXPOSURE MEASUREMENT

continued

Special C

Ises

Repro-Copying

For originals such as photographs which have tonal

gradation, exposure is determined in the usual way.

In the case of originals having strong contrast and no

gradation

such as documents or line

drawings,

mea-

sure brigh tness of the

white

portion of the original

(if the original is predominantly black, a sheet of white

paper

may be substituted) after decreasing film speed

by four marks. Or increase exposure about 1-1/3 stops.

Slide Copying

For originals with continuous tone gradations, deter-

mine exposure in the usual way by the stop-down

method

To copy slides with letters or figures on

transparent background, decrease film speed four

marks or increase exposure about 1-1/3 stops. In

the case of transparent figures or letters on a dark

background, either increase film speed five marks or

decrease exposure about 1-2/3 stops.

Important: The above are only approximate guidelines. Exact

exposure determination .is extremely difficult, especially with

color reversal rums. Therefore, it is advisable to make several

different exposures for each subject to be sure of getting one

that is correct.