Metz 34 AF-3 P operating instructions Autofocus measuring flash

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7. Autofocus measuring flash

Notes:

The AF measuring flash is only supported in the camera's "SINGLE AF" mode.

When the camera’s autofocus system is on, the electronic circuit will automatically activate the autofocus measuring flash whenever the prevailing light is insufficient for the exposure.

The range of the autofocus measuring flash depends on the speed of the lens (maximum aperture)! With an f/1.8 standard lens of 50 mm focal length, the range is approx. 6-10 m (depen- ding on the sensitivity of the camera’s AF sensor).

Due to parallax between camera lens and AF measuring flash, a minimum distance of 1 m to the subject is necessary. The AF measuring flash will not cover the subject if the shooting distance is less than 1 m. In such instances ensure a higher ambient light level.

Low-speed lenses, e.g. with an aperture of f/5.6 or f/8 (such as zoom lenses), significant- ly restrict the range of the autofocus measuring flash!

The AF measuring flash is not activated in the camera's continuous focusing mode or when the autofocus system is switched off.

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Contents Mecablitz 34 AF-3 P Foreword Dear CustomerContents Safety instructions Do not short-circuit batteries! Danger of ExplosionDisposal of batteries Do not dispose of spent batteries with domestic rubbishPower supply Preparing the mecablitz for useLoading and exchanging batteries Automatic flashgun switch-off Mounting/Removing the flashgunSetting the mecablitz into operation Features this functionSwitching the flashgun on and off PreconditionsFlashgun instructions to the camera Flash-ready indicationAutomatic flash sync speed control Correct-exposure indication see fig MeaningNot illuminated Or blinks slowlyTTL flash control Autofocus measuring flash Flash in the individual camera modesTriggering lock only SF1 and SFx AF red-light beamAutofocus measuring flash Flash techniques and flash functions Fill-in flashExposure correction Lighting and attachments Mounting and removing the attachmentsGuiding edge Case gap Care and maintenance Troubleshooting TroubleshootingSwitch off the flashgun with the main switch Forming the flash capacitorTechnical data Colour temperature approx K SynchronizationFlash duration Number of flashes Flash recycling timeLighting distances Sticker can be applied to the back of the flashgun