Speedlite Flashes
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Resolved! Speedlite 430EX II Left batteries in until they leaked!

I have a Canon EOS and a 300D Speedlight 430EX 111 which I left batteries the in until they leaked!I cleaned the Speedlight battery holder but whatever I do I can find no life. Its years since I used it and can't remember if it shows life when not co...

BML by Contributor
  • 19 replies

Resolved! EL-1 not receiving Zoom coverage with 70mm-200mm

My understanding is that setting Zoom to "Auto" should change the Zoom setting depending on the Zoom setting of a Zoom lens. Unfortunately, this doesn't seem to work at all when used with my R5 + ST-E3-RT v2 and RF 70mm-200mm. It always shows 50mm no...

600EXii-RT Stopped Flashing

I have a 600EXii-RT problem that I can't figure out. I changed the batteries and now the unit powers on normally, but won't flash, even with the test button. I had been using it for a few hours prior to the battery change and it worked perfectly. No ...

Dakota59 by Contributor
  • 11 replies

600ex-rt HELP!!!

So my Speedlite 600ex-rt turns on, changes modes and functions, communicates with the camera when on the hot shoe but will not fire when shutter is clicked nor will it fire when trying to test (pressing red light). Does this mean the bulb blew? The f...

pwald16 by Apprentice
  • 3 replies

ST-E3-RT / 430EXIII RTDropping link

Hi all,My setup is x1 ST-E3-RT transmitter and x3 430EXII-RT speedlights.For the last month or so, my ST-E3-RT (ver 1) transmitter keeps dropping links with all 3 of my 430EXIII RT speedlights after the 8-10 mins mark. I've tried scanning and assigni...

lobboclub by Contributor
  • 11 replies

Speedlite 600EX-RT Intermittent Power On Problem...

Has anyone experienced the problem where you turn on the 600EX-RT and nothing happens? A few nudges and bumps of the flash in my hand and the power comes on? Put in fresh batteries and made sure all the contacts were clean... but it seems to be happe...

llehmann by Enthusiast
  • 6 replies

Canon 600 RT 2 not reading Batteries

this has been discussed numerous times in this forum.  The flash will not recognize the batteries and displays a blank battery symbol with a line through it.  Some of the fixes have been centered around the adapter for the filter causing an issue.  i...

photopro by Contributor
  • 0 replies

Resolved! Missing Wide Panel Causing Speedlite 430EX II to Not Zoom.

Good Morning, so I was recently gifted a canon 430ex ii speedlite, which was a kind gesture; but the more I use it the more I understand the person's willingness to give it away.So the Wide Panel diffuser that usually slots into a compartment at the ...

itsVasty by Apprentice
  • 2 replies

Resolved! What is your favorite Speedlite and why

My favorite speedlite is the 600EX II-RT it has plenty of power and has the best IR AF Assist Beam coverage of any of speedlite. Then the radio vs optical triggering is better using radio.-Demetrius40D, 5D IV, EF 16-35mm F/2.8L III, EF 24-70mm F/2.8L...

Speedlite 600EX-RT link drops - please help if you can!

I suddenly have the same problem a couple others have mentioned.  I use an ST-E3-RT to link three 600EX-RT flashes with a 5D MIII.  Recently the link started randomly dropping on all the flashes (after some random amount of time from 1.5 minutes to a...


Hello, i have a problem, i hace an R5 and a EL-1 and always use the ETTL II but yesterday i didnt use the camera and the flash and today the flash shoot the flash w the trigger and comunicate fine w the camera and on all the other modes shoot normal ...

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08/18/2023: Canon EOS R5 C training series is released.

07/31/2023: New firmware updates are available.

CR-N700 - Version 1.2.0

CR-N500 - Version 1.3.0

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CR-X300 - Version 1.1.0

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04/20/2023: New firmware version 1.4.1 is available for EOS R3

03/30/2023: New firmware updates are available.

EOS R5 - Version 1.8.1

EOS 1DX Mark III- Version 1.7.1

Speedlite EL-1 - Version 1.0.2

03/30/2023: Product Advisory for EF50 F1.2 L USM

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02/24/2023: We've updated Share Your Photos

2/07/2023: New product announcements!

EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM
01/09/2023: Help ensure your autofocus is properly aligned with a Canon Precision Alignment
01/03/2023: Welcome to CES 2023!
12/08/2022: New firmware version is available for EOS C70
12/07/2022: New firmware version 1.7.0 is available for EOS R5