====== Camera Flash Control ======

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^Cable^Shoe^Function?^Voltage^Wire^
|Shield|G|Gnd| |0|
|Red|F1|Fire|1.66Vdc|3|
|White|F2|flash ready signal / data|2 Hz signal 1-5V (0V when charging)|2|
|Black|F3|TTL OK signal / clock|1.06V (0V when charging)|1|

===== Measurements =====
^Flash Duration^^
|0.1ms delay||
|27 to 28ms|one tube|
|13ms|two tubes|
|11ms|three tubes|
|8ms|Four tubes|




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==== Dimage A2 ====
0.2-0.4ms pre-flash

120ms later, 0.64ms main flash

0.16 ms(1/16 power)

0.235ms (1/8 power)

0.43ms (1/4 power)

0.67ms (1/2 power)

4.25ms (full power)

===== Links =====


[[http://www.mhohner.de/sony-minolta/oneflash/pf-m-1200|Minolta 1200AF Specs]]

[[http://www.mhohner.de/sony-minolta/flashcomp_techref.php#oldshoe|Hotshoe Pinout]]



[[http://www.snowcat.de/flashcontroller/|Nikon Flash Controller]]

[[http://www.voitzsch.net/index.php/en/flashconv-a-minolta-flash-converter]]

According to [[http://www.sds.com/mug/mf-flashes.html|sds.com]] the Control unit 80px has a thyristor and adjustable light output.

[[http://www.camerasunderwater.info/engineering/flash/nikttl.html|Quench info]]

[[http://code.google.com/p/strobist-project-opensource-trigger/wiki/HardwareDocumentation]]

[[http://www.flickr.com/photos/fotoopa_hs/3715377259/]]
[[http://www.flickr.com/photos/fotoopa_hs/3709381751/]]

What to do next?
  * Hook up a logic analyzer to the modulating signal
  * Use a microcontroller to try grounding the TTL OK signal, or applying a few volts, after firing the flash.
  * Open up the flash