Speedlite Flashes
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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...

gsbuah by Contributor
  • 2 replies

Resolved! Speedlite 589ex ii

With the 580 is it possible to set it to emit a low power pulse of light that will trigger another Speedlite but not light the subject itself? Thanks!!

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?

HenryTS by Apprentice
  • 1 replies

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...

Flash Exposure Inconsistent

I'm using 580EX flash units on my Mk4 cameras with a 24-70 f/2.8 or the 17-35 f/2.8, mostly bouncing slightly with a dome on the flash. Fresh high output batteries or a high-power external source is the power.  The exposure is varying from frame to f...

My 580EX II only exposes correctly in bounce mode :-0

I noticed that my speedlight underexposes (by at least 2 stops) in the normal flash head configuration.  Once I place any kind of an upward bounce on the strobe, I get a correct exposure.  It exposes correctly in the left/right bounce configuration. ...

W13 by Apprentice
  • 5 replies

E-TTL on 6D+600EX-RT

Hi Everyone,         my current setup is the 6D (24-105 F4) and the 600EX-RT speedlight. the issue i'm having is with the E-TTL exposure.          yesterday i noticed that any subject further than 10feet gets under-exposed (this is indoor testing). B...

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01/18/2023: New firmware version 1.1.1 is available for EOS R6 Mark II
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12/08/2022: New firmware version is available for EOS C70
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