Question about Metz 70 MZ-5 TTL Flash
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.
Posted on May 28, 2008
Tips for a great answer:
Feb 09, 2011 | Canon SPEEDLITE 580EX TTL Flash
Jan 04, 2010 | Canon Speedlite 580EX II TTL Flash
Sep 23, 2009 | Canon Speedlite 580EX II TTL Flash
Nov 13, 2008 | Nikon Speedlight SB-800 TTL Flash
Apr 14, 2008 | Nikon Speedlight SB-600 TTL Flash
Jan 02, 2008 | Canon SPEEDLITE 580EX TTL Flash
Nov 22, 2007 | Nikon Speedlight SB-800 TTL Flash
Feb 17, 2011 | Metz 70 MZ-5 TTL Flash
123 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: