martin_jordan Posted April 12, 2009 Share Posted April 12, 2009 <p>I use my Canon 40D all the time with 3 Paul C. Buff White Lightening X800 lighting units and 4 Pocket Wizard Plus II units with no problems.<br> I just bought a new 5d Mark II a few weeks ago and mounted one of the Pocket Wizards on the hot shoe just like I do with 40D. Nothing. I push the shutter button and no flash. It works fine when I push the test button on the PW transmitter but it won't work with the shutter button. I've combed all through the Canon Mark II owners manual to find an answer. I've made several menu adjustments to try to make it work. I put the PW back on the 40D and it trips the units just fine.<br> So I know the x800 units work fine. The PW's work fine. But not on the MarkII.<br> What am I missing?<br> Help?</p> Link to comment Share on other sites More sharing options...
PuppyDigs Posted April 12, 2009 Share Posted April 12, 2009 <p>Maybe Canon tweaked 5DII flash trigger signal and Pocket Wizard needs a ROM update to respond?</p> Sometimes the light’s all shining on me. Other times I can barely see. - Robert Hunter Link to comment Share on other sites More sharing options...
jnicholson Posted April 12, 2009 Share Posted April 12, 2009 <p>I'd bet that the PW isn't making good contact with the hotshoe.</p> Link to comment Share on other sites More sharing options...
martin_jordan Posted April 12, 2009 Author Share Posted April 12, 2009 <p>Hey Guys. That's so weird. I saw the above post reply about the contact with the hot shoe. I knew I checked that but I tried it again by putting the PW back on the Mark II and tried with another lens; a 50mm. It worked fine. I put the original lens back on and it worked also.<br> WOW! It appears that the PW transmitter wasn't making good contact. Even though I had tried that twice before apparently not good enough. Everything is fine now.<br> Thanks again.<br> I just love Photo.net.</p> Link to comment Share on other sites More sharing options...
martin_jordan Posted April 12, 2009 Author Share Posted April 12, 2009 <p>OK, I'm a dumb ass.</p> Link to comment Share on other sites More sharing options...
cabbiinc Posted April 13, 2009 Share Posted April 13, 2009 <p>You're no dumby. The 5DmkII has had issues with other triggers with radio interference. More specifically the newest PWs with the 5DmkII. Patrick Clow from PW checks in with the <a href="http://www.flickr.com/groups/pocketwizards/">Pocket Wizard group on Flickr</a> often. You may get some responses to fixes or things to avoid if you post there.</p> Link to comment Share on other sites More sharing options...
rob_wall Posted April 13, 2009 Share Posted April 13, 2009 <p>I have been finding that my PW triggers my Profoto monolight with built-in PW maybe 90 or 95 percent of the time. Pretty good odds, admittedly, but I am wondering what is going on.</p> Link to comment Share on other sites More sharing options...
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