Question about Metz 70 MZ-5 TTL Flash

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Inconsistent exposure. even if i change my settings. but this is only sometimes. i can shoot twenty shots and they may all be perfect. but then for no apparent reason the exposure is either over or under for a while. what am i doing wrong? when its right the pictures are beautiful!

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  • hope1 Jul 09, 2008

    I recently got three of these units. All three in manual mode for no reason and no pattern will give out only a wink of flash causing under exposure. This occurs in day light with fill flash and with night shots with the flash fully exposing the subject. Nobody can tell me why. It is not recyle time or any other straight forward problem caused by the photographers. Never had this problem with the older ct60 units. In manual mode the flash output should be the same every shot. Good luck.

  • v_e_roberts2
    v_e_roberts2 Mar 28, 2012

    Hi, I have just upgraded from a Metz 70 mz-5 (since the controls seezed up in manual full power) to a Metz 76 mz 5 and the exposure in manual or auto is completely inconsistant... It's appears to be alsomst random ... And I can't find anything to help... It's brand new and it's driving me insane... Does anyone know what the could be down to? Please please help me I will be eternally grateful :) thanks, Johnny.

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There are dozens of causes of inconsistent exposure with automatic flash systems. More common ones are inadequate recycling time (shooting before the ready light comes on), weak batteries that lengthen the recycling time or an intermittent anomaly in the internal circuitry of the unit which can only be traced by a qualified technician.

If the unit is used in auto mode (not TTL) dirt or ones hand can block the photo-electric sensor on the unit and affect exposure accuracy.

One other cause of inaccurate exposure is something called “subject failure”. This can occur in a large room like a church, ballroom, gym or a large rotunda. What happens is the automatic system in the flash or the TTL system in the camera reads the entire room and not a smaller subject in the image. Think of a bride and groom dancing in a large hall, the system would read all the space and possible darkness surrounding the subject and overexpose the subject. This often happens with automatic flash equipment that was originally designed for film cameras. On DSLRs, the sensor in the camera may react differently in terms of the area that it is reading. Some of the newer flash units are more compatible with digital equipment.

If you are missing only 1 shot out of 20- that’s not too bad considering all the variables.

I hope this helps!

PS- If there are problems in the circuitry, unless you are an experienced technician with high voltage devices, it is not advisable to try and service the unit at home. Many flash units harbor lethal voltages that can cause burns, nerve damage, serious electrical shock or even death. Theses voltages can remain in the unit even after it is turned off.

Ed

Posted on May 28, 2008

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Hi Kate,

What camera that you are having problem with those flashes?
Will switching the two have the same problems.
Make sure it is fully pushed forward into hotshoe & locked:-)

Try shooting second current, this will save you the repair costs.

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atdlee@netzero.com

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that the camera/flash set-up I use ... there are many variables - iso/metering setting/shutter settings/flash settings .
If it's a flash function problem, try this to isolate it - first, with the diffuser/reflectors tucked into the flash head, and the head straight up, with the flash set in master mode, turn it on and look on the back screen. push the mode button til you see the ETTL in the upper left of the screen .. then press the set button in the center of the dial and the nuber in the center of the display should flash (+0) while the light is flashing, rotate the dial to change the setting (i usually under power by 1/3 stop. Play with the exposures a few times to get the feel for what the EV shifts do to your exposure. generally speaking, for interior low-light, i prefer to bounce off the ceiling (if low ceilinged), if there's too much direct it will give you an uneven and predominantly underexposed image.
if you prees the mode button you will come to the same options for adjusting the output in manual mode, but it will not work with the autoexposure in the camera.
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atdlee@netzero.com

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Hi Stew,

Do the following:

ISO: 400
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Now, it's magic!
Send me some money for this tips when you make more money and produces great exposures:-)
Now, you're the top photographer in the town.

You can set ISO to 800 if you are not printing bigger than 8 X10.

Hope above are helpful to you and all photographers.

Alexander
atdlee@netzero.com

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