Canon Community

learning about flash units

I've been trying to find a good site that explains what to look for in a flash unit and how to match one to both the camera and my typical subjects.  The only flash I ever bought was a Vivitar for my AE-1 Program so I'm somewhat behind the learning c...

Rebel T5 and 420ex?

Will my Rebel T5 be able to do the slave mode with an older 420ex?

Fill Flash and Flash as main light

I just wanted to clear something up for myself. when I use the Flash Ettl in manual mode, it ask like the main liight  source right?  Only when you are in AV and Shutter does the flash act like fill flash? Now if that is true, would it make more sens...

600 EX-RT smells like burning when fires

One of my 600EX-RTs started to smell like burning rubber when firing! First, the recycle time increased, after which we switched batterries. That made no difference and after a couple more hard-to-get fires, it started to smell (just at the very top)...

270ex II not connecting wirelessly to T6S

Hi everyone. I've been trying to connect the Speedlite 270EX II to my Rebel T6s but can't seem to get it to sync through wireless. I've tried every setting and channel but only works when mounted to the camera. I've dug around online but haven't seen...

Will Canon 600ex-rt work with Canon 1100D?

Hi,I recently bought cactus 60rf and apparently there is no af assist beam in it, which when i tried to take a picture in the dark it didn't automatically focus.So i will return this flash to the store and buy Canon 600ex-rt, and my question is, if t...

What is cause of internal flash on 60D not functioning?

Speedlight Ratio Question -

 From the 550EX users manual I understand how to adjust the ratio between slave speedlights with the master turned off, but how do you adjust the ratio between the master which is turned on and a slave?

Speedlite 600 ex-rt flashes rapidly & then camera won't focus

What causes a speedlite to fire rapidly, almost like a strobe light, while on top of the camera angled at the ceiling? Afterwards, it take a bit for my camera to do anything (Mark ii 5D)...won't focus or anything, like it's thinking or something. It ...

600EX-RT and ST-E3-RT Failed

I was at a wedding shoot last weekend and my (3) 600EX-RT and ST-E3-RT worked great until I got into the reception hall/tent.  Could not get the flashes to fire via radio.  Had to resort to on camera flash for the entire reception.  The next day I tr...

I cannot get high speed sync to work

Hi all,  I have an EOS 6D and a Speedlite 580exii. For the life of my I cannot get the high speed sync to work. At anything past the shutter sync speed I get a black bar despite the fact I have enabled the high speed sync mode. I should also note I a...