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LEICA SF 40 Flash User Manual

Page 41

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EN

39

FLASH MODES

You can choose between the following modes:

Video light (see p. 40)

SF

Remote triggering without prefl ash (see p. 41)

SF

Remote triggering with prefl ash (see p. 41)

M

Manual operation (see p. 41)

A

Fully automatic

TTL

Fully automatic with the option to use fl ash exposure

compensation

Setting procedure

Turn the selector dial

8

so that the desired mode is opposite the

Index LED

8a

.

A FULLY AUTOMATIC

Use this fl ash mode to achieve very good fl ash shots very simply.

The camera controls the fl ash exposure. It measures the light

refl ected from the subject through the lens (TTL).

Depending on the camera, the camera fi res an almost undetect-

able measuring prefl ash from the fl ash unit prior to the actual

exposure.

All of the camera's exposure modes, i.e. programmed automatic

(

P

), shutter priority (

S

/

T

), aperture priority (

A

) and manual setting

(

M

) can be set.

TTL FULLY AUTOMATIC

As with

A

, however you can infl uence the fl ash illumination by

entering a fl ash exposure compensation of -2 to +2 aperture values

(EV) in half steps.

Reason:

Automatic fl ash exposure control is based on a refl ectance of 25

 

%

(average refl ectance of subjects). The subjects illuminated by the

fl ash light may therefore in some cases be over or under exposed:

– the main subject is very dark or very bright/highly refl ective

– an (averagely bright) main subject is very small and/or in front

of a very bright or heavily refl ective background (e.g. with backlit

shots), or in front of a very dark background (e.g. with night

shots)

• The status LED

9d

lights up as an indication that fl ash exposure

compensation can be set.