duane_eddy Posted January 20, 2016 Share Posted January 20, 2016 <p>I purchased my first speedlite flash (Yongnuo YN565EX II). It says it's compatible with my Canon Rebel XTi but I can't get it to fire. It is communicating with the camera because I can see the f-stop changing on the LCD on the flash when I change it on the camera. The flash will fire when I press the pilot button. When I press the shutter halfway, the redlight on the front of the flash will blink. No matter what setting I use on the camera from manual to full automatic, it will not fire with the shutter. Is my flash bad? Is is not compatible? Does anyone know of a proven speedlite for the Rebel XTi beside the Canon brand?</p> Link to comment Share on other sites More sharing options...
nilantha Posted January 20, 2016 Share Posted January 20, 2016 Is there any way to test YN565EX on a different body to make sure it fires? Have used any speedlight on your XTi before? Want to make sure it is function properly, although you could see they communicate. Link to comment Share on other sites More sharing options...
Robin Smith Posted January 20, 2016 Share Posted January 20, 2016 <p>Try the flash on automatic or manual (i.e. not E-TTL) and see if it fires. If it does then I think it is not fully compatible with the XTi. Just guessing...</p> Robin Smith Link to comment Share on other sites More sharing options...
Ken Katz Posted January 20, 2016 Share Posted January 20, 2016 If its a model "YN565EX I/II C" it should be compatible with all EOS digital cameras (according to the B&H website). First, make sure the flash is tightly seated and locked in on the camera's hot shoe and that all the contacts (on flash and camera) are clean. Try it indoors in TTL mode with the camera on P, Av, Tv or M. If it still doesn't work there is probably something wrong with the flash and it should be replaced. Link to comment Share on other sites More sharing options...
Laura Weishaupt Posted January 20, 2016 Share Posted January 20, 2016 <p>Here's something to look at. Go into your menu settings and find Flash Control. Make sure that "Flash Firing" is enabled. Also, check External Flash settings. There is also an External flash custom function. These are all on the same menu page in my XSi. Your menu settings may be different, but it's something to check. Also, just in case you haven't done so, consult the manual.</p> Link to comment Share on other sites More sharing options...
duane_eddy Posted January 21, 2016 Author Share Posted January 21, 2016 <p>@ Nilatha - This is the first time I've tried an external flash. I don't have another camera body myself but I may have to purchase a different brand and see if that works. I'm going to have to find a friend with a DSLR and see if they can get my flash to work.<br> @ Robin - I tried that. It still doesn't fire<br> @ Kenneth - Is TTL the same as ETTL? It only has ETTL/M/Multi. I've tried every camera setting A-dep, M, Av, Tv, and P and still no luck. I also put the WB in flash mode. Still no luck. I seems that the flash is accepting data from the camera because the zoom and f-stop will change when I change it on the camera. I can't get the camera to recognize that it has a hot-shoe flash. It's like it doesn't see it.<br> @Laura - My camera doesn't have a flash control menu item. I've read the manual several times. Can't figure this out.</p> Link to comment Share on other sites More sharing options...
nilantha Posted January 21, 2016 Share Posted January 21, 2016 Duane, I believe YN565EX has an optical slave mode, try to fire it with your pop up flash. Often times you have to do this with M mode on the camera to avoid premature firing of optical slave because of ETTL pre flash. Post your results. Even this works you could have other issues. To fire a flash you need connectivity between center and earth while rest of the pins are communicating other data. Link to comment Share on other sites More sharing options...
Ken Katz Posted January 21, 2016 Share Posted January 21, 2016 Set the flash to ETTL and make sure the flash is not in slave mode. Again it sounds like the flash is likely not working properly and needs to be replaced. It would be helpful to confirm this by trying it on another EOS camera. Link to comment Share on other sites More sharing options...
ruben leal Posted January 23, 2016 Share Posted January 23, 2016 ** Caution: this advise should only be followed if you feel comfortable doing electrical work ** ** High voltage may be involved in this testing, with risk of electric shock ** ** I can't assume responsibility if any kind of problem arise when following the instructions described here ** Your flash's hot shoe should have five pins, four of them forming a square, and a fifth one on top of the previous four. The former four are for control (these are the connections that allow the camera to send information to the flash, such as aperture, zoom position and ISO). You shouldn't touch these (and these seem to be working properly). The last pin is the one that triggers the flash. There should be another pin, usually on a side of the hot shoe, this one should make contact to the metallic hot shoe in the camera where the flash sits. If you make a short (that is, connect with an electric conductor, such as a metallic paper clip) between these last two pins (the flash trigger and the ground) in the flash, the flash must fire (actually this is what your pilot button is supposed to do, but there may be a wiring issue with the main trigger pin that the pilot button may circumvent). If you are able to fire your flash shorting the trigger and ground pins, then your flash is working fine, and the camera is the culprit, otherwise the flash is to blame for your problem. Link to comment Share on other sites More sharing options...
duane_eddy Posted January 25, 2016 Author Share Posted January 25, 2016 <p>That's good advice Ruben. I used a paper clip to make a short and the flash fired. So the flash is working. It must be the camera. I'll have to see if I can get it repaired. Thank you. I am going to take my camera to a local camera store and try my flash on a different camera and try a different flash on my camera.</p> Link to comment Share on other sites More sharing options...
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