Exposure corrections

Compensazione dell‘esposizione manuale

Correcciones de exposición

14. Manual flash exposure correcction

The automatic exposure system of the mecablitz and most cameras is based on a subject reflection factor of 25% (average reflection of subjects shot with flash). A dark background that absorbs a great deal of light, or a highly reflective bright background (e.g. when shooting against the light), can result in overexposure or underex- posure.

To compensate for the aforementioned effect, the expo- sure can be manually corrected with a correction value adapted to the given photographic situation. This correc- tion value depends on the contrast between subject and background! In the TTL and A mode of the mecablitz, manual flash exposure correction factors of -3 EV to +3 EV (f-stops) can be set in one-third increments. Many cameras have a setting element for exposure corrections which can also be used in the TTL flash mode.

Please refer to the explanations in the operating instruc- tions for the given camera and the SCA adapter.

Exposure correction by changing the aperture on the lens is not possible in this instance because the came- ra’s automatic exposure system will regard the changed aperture as the normal working aperture.

Dark subject in front of a bright background: Positive correction value (approx. 1 to 2 f-stops EV)

Bright subject in front of a dark background: Negative correction value (approx. -1 to -2 f-stops EV)

The entering of a correction value may result in a change of the maximum flash range indicated on the LC display of the mecablitz and its adaptation to the correction value (depending upon the camera type and SCA adapter)!

Setting manual flash exposure correction:

The mecablitz is operating in TTL flash mode or in A flash mode.

Turn the setting disk until the „EV“ symbol appears on the LC display. The arrow symbol alongside „EV“ indi- cates that a position has been reached where you can enter a correction value.

Press the setting disk in the direction of the arrow. The arrow symbol alongside „EV“ starts to flash.

Turn the setting disk to set a suitable correction value. The correction value is shown on the LC display of the mecablitz.

Press the setting disk in the direction of the arrow for storage. The selected value is automatically stored

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Metz 54 MZ-3 operating instructions Manual flash exposure correcction, Exposure corrections, Correcciones de exposición