david_r._edan Posted November 4, 2016 Share Posted November 4, 2016 <p>Hello.<br /> I want to see if I can integrate this little transmitter <strong>INTO</strong> my Sekonic L-608:</p> <p>http://www.ebay.com/itm/YONGNUO-RF-600TX-2-4GHz-Wireless-Remote-Trigger-for-YN560-III-Flash-Nikon-DSLR/162255546578<br /> If I completely disassemble this transmitter and strip it of anything I can chuck, including the battery, I might be able to fit the essentials into the tiny compartment in my L-608 that's reserved for the wireless module.<br /> Both, the Sekonic L-608 and the Yongnuo transmitter are powered by a 3V battery, so this is basically what gave me this idea. However, when I took my multi-meter to the wireless module connector, I was able to read 5 volts between some of the pins, so, I may have to use a resistor there but it's not a big a deal. That's about as much blind-testing as I'm willing to do on my L-608. Without knowing anything about the pin designation I'm not going to risk drawing any actual current from them.<br /> Then there's the "fire" set of pins that I have no idea are which. Without hooking up ALL the pins to a proper scope I couldn't tell which of them are actually used to transmit the "fire" signal. I might experiment with this but I rather I wouldn't. Especially that I don't know if the L-608 even makes any kind of output through that connector when the unit is not in the "wireless flash" mode. As far as I know, there's no way of getting into that mode, unless there's an actual wireless transmitter installed. I couldn't find anything in the Custom Settings but maybe I missed it.<br /> Maybe it's possible to shorten a pair of pins to fool the L-608 into thinking it has a wireless module installed.<br /> <br />So, what I need is a datasheet for either one of the light meters that are similar to my L-608, OR a datasheet for either one of the wireless modules. I just need to know what each of those pins is used for and I'll take it from there.</p> <p>Can anyone help me with this? because I wasn't able to find anything on my own.<br /> Maybe there are actual markings on other models or some of the transmitters. On my L-608 there is nada...</p> <p>Thanks!</p> Link to comment Share on other sites More sharing options...
rodeo_joe1 Posted November 6, 2016 Share Posted November 6, 2016 That's a ridiculous amount of trouble just to get a flashmeter to fire a flash. The L-608 has a P-C coaxial synch socket does it not? So all that's needed is to couple the radio trigger to the meter's synch socket, and that can be done with a simple hotshoe to coax adapter. OK, the trigger won't be integrated into the meter, but it won't have taken hours of research and modification to get it to work either. Link to comment Share on other sites More sharing options...
david_r._edan Posted November 7, 2016 Author Share Posted November 7, 2016 <p>Nothing ridiculous about it. If I knew how to get the meter into the Radio flash mode w/o the actual radio module it would be a one-hour job, given everything can fit into the compartment. The time spent on research and what not?.. Yeah,.. I guess, there's that too. It's inevitable when one wants to mod an electronic instrument without risking ruining it in the process.<br /> <br /> By now I have strong evidence (actual tests) that the L-608 does not make any kind of output via those pins, in the corded-flash mode.</p> <p>Connecting the Yongnuo transmitter to the PC terminal? Like.. duh.. I already have it set up like that. I attached two small pieces of self-adhesive velcro: One to the battery compartment lid and the other to the transmitter, so I can attach and remove the transmitter at will. And I'll do you one better: To reduce bulk (and cost) I didn't actually use a hot-shoe adapter. I wired a short PC-cable directly to the transmitter. It works awesome, though it looks and feels gnarly. Plus, there's the extra battery (transmitter) that I have to worry about.</p> <p>Anyway,<br /> Thanks for the advice.</p> Link to comment Share on other sites More sharing options...
rodeo_joe1 Posted November 9, 2016 Share Posted November 9, 2016 You might want to read this thread: http://photography-on-the.net/forum/showthread.php? p=13805075&i=i42156677 Apparently a microcontroller and appropriate programming are needed to "fool" the sekonic meter into radio trigger mode. Link to comment Share on other sites More sharing options...
david_r._edan Posted November 9, 2016 Author Share Posted November 9, 2016 <p>That's a bummer, man. I kinda had a feeling it wasn't that easy. Oh, well...<br> Thanks and<br />End of discussion.</p> Link to comment Share on other sites More sharing options...
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