Pentax 40 MZ-3i - Manual (Page 27)

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14. Special functions
The ML function (Modelling Light)
The ML button
ባ on the flashgun triggers a modelling light for approx. 4
seconds to allow assessment of the shadows, particularly in remote control
modes. When the ML button is pressed on the controller (master flashgun), all
slaves of the type 40 MZ-1(i) and 3 (i), and 50 MZ-5 will simultaneously emit
such modelling light. 40 MZ-.. slaves must be fitted with an SCA 3080 adapter for
this purpose. Hold down the ML button
ባ for at least 2 seconds to trigger the
modelling light and release the ML button
ባ the moment the modelling light
lights up. Switch off the mecablitz if you wish the light to be cut off.
The modelling light can be triggered about 60 times with a fully
charged battery.
This mode is not suitable with battery operation.
ML-functions
14. Special functions
Fig.27: The AF measuring beam
In such an event the exposure o.k. display
µ remains dark after the shutter has
been released. Select the next larger f-stop (e.g. f/8 instead of f/11), and repeat
the exposure.
AF measuring beam
As the release or other sensory control of the camera is operated, the integrated
AF measuring beam
ᕨ is automatically activated in the event of low lighting
levels or with a low-contrast subject. The measuring beams project a light
pattern onto the subject (Fig. 27). The camera’s autofocus system uses the light
reflected from the subject to measure image sharpness and focus the lens. The
range of the AF measuring beam
ᕨ is approx. 9 m with a 50 mm f/1.7 lens.
This function is only available with specific AF cameras in conjunction
with an SCA 3000 adapter.
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AF measuring beam
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