Operating instructions

MC 80

Carl Zeiss

B 40-036 e 03/99 2-13

2.3.3

AUTO mode (Automatic exposure control)

Pressing the <AUTO> button activates automatic

exposure control. The exposure time shown by the

LCD display is determined by the existing light

intensity, the film speed, the method-specific

exposure correction, and the camera factor.

During the exposure, the time indication is running

back to zero.

2.3.3.1

Exposure correction in AUTO mode

Use the <UP> ad <DOWN> buttons to enter the

desired exposure correction for the microscopy

method used, in whole increments. For easier

input, the LCD display indicates the methods and

the correction values assigned to them.

2.3.3.2

Common settings for method-

specific corrections

For brightfield (Dark features on a bright background) BF +1

For phase or interference contrast PH/DIC 0

For darkfield/fluorescence (Bright features on a dark background) DF/FL -2

Depending on the type and size of the features seen before the background it may be necessary to

deviate from the above settings in favor of these:

For brightfield

Few, or very small, dark features on large expanse of bright background BF +2

For darkfield / fluorescence

Few, or very small, features on large expanse of dark background DF/FL -3

AUTO

EXP.ADJ.

UPDOWN