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I recently purchased a set of second hand Novatron 500 strobes. I own a set of Yongnuo YN-622C transreceivers. I have a sync cable between the strobe and a YN-622C, and the second set on my Canon 5D Mk II. I can't get the strobes to trigger. What am I missing? I am very new to this so please bear with me and help me out. I can't seem to find any answers anywhere :(.

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Few things to check:

  • Make sure you have a YN-622C directly on the hotshoe to act as transmitter. The PC port on the YN-622Cs is output-only--you cannot hook it up to the camera's PC port and have it act as a transmitter.

  • Make sure all your batteries are in good health and fully charged. Bad or weak batteries in the flashes, camera, or triggers can make debugging what's going on harder.

  • Make sure your triggers are on the same channel.

  • Make sure you're in M mode, not TTL--the Novotron is a manual-only light and will not understand TTL, HSS, etc. You also will not be able to control it through the camera menu or the 622 triggers to do anything other than fire in sync with the camera shutter.

  • Use the test button on the transmitter to see if the receiver fires the flash and/or lights up. If the triggers communicate, then it could be the camera-to-transmitter connection isn't good (so, if test button works, test the shutter button). And if the light isn't firing, but the triggers are communicating, then it's the trigger-to-the-flash sync connection.

  • If the triggers simply aren't communicating, and you know they've got good batteries, and are on the same channel, then consider doing a factory reset.

Refer to the TOYUG (The Other YN-622C User Guide) for more details.

As an aside, make sure that what you think is the sync connector is the sync connector. Some of my googling mentions some Novatron lights use a HH (household) sync connection, not PC or 3.5mm miniplug, so if the M500 is one of these, you'd need a PC-to-HH cable to hook up a YN-622C to it.

Alternatively, the Novotron M500 also has a "dumb" optical slave on it, so you don't have to use radio triggers to pop it remotely. You would, however, need a flash on the 5DMkII (probably with the flash in M mode to avoid preflashes) to trigger it, since the 5DMkII doesn't have a pop-up flash.

  • Thanks so much for your help. With all info you have shared i think i have narrowed it down to "trigger-to-the-flash sync connection". i will try the optical slave option and see if that gets it working. Thanks a ton again. – Pooja Lenswork Apr 2 '15 at 5:26
  • Thanks Inkista. The dumb optical slave idea worked. But now i have the flash firing as well :). I think it was either the wire (which is new) or the Y622C not compatible with the novatron? Any ideas? Before i invest in another set of transceivers i thought an expert advice will surely help. – Pooja Lenswork Apr 2 '15 at 20:43
  • I'd say it's probably the cable, then. The YN-622C is compatible with manual studio strobes. But I've never used a studio strobe, so I'm probably not the expert you want. Try the POTN board--there are a lot of 622C experts over there. – inkista Apr 2 '15 at 23:06
  • Thanks so much. Please know I totally appreciate your help. – Pooja Lenswork Apr 3 '15 at 3:36

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