03-29-2017 11:46 AM
Got new mk4....my focus beam on the 430ex 3 is not firing...it will fire on my 6d's. I did check the menu to indicate that af assist beam is enabled.
03-29-2017 11:56 AM
Which menu? The mk4 or the flash?
03-29-2017 01:48 PM
I did both menus...as I said...it fires fine on my 6d's. Now I did try my laso transmitter on the mk4 and that fires the beam no problem.
03-29-2017 01:49 PM
I suggest you call Canon.
03-30-2017 05:53 PM
The IR AF focus assist beam will only activate when in One Shot, it will not activate in AIServo.
The IR AF focus assist beam will only activate when the camera can not achieve focus without it.
03-30-2017 06:11 PM
It seems that it will not fire if you are using the precision focus point...also does not seen to fire if the focus point is not in the center.
05/31/2023: New firmware updates are available.
EOS R6 Mark II - Version 1.1.2
05/18/2023: New firmware updates are available.
EOS Rebel T100 - Version 1.1.0
EOS 5D Mark IV - Version 1.4.0
EOS 6D Mark II - Version 1.2.0
PowerShot Elph 360HS - Version 188.8.131.52
PowerShot SX420 IS - Version 184.108.40.206
PowerShot 620 HS - Version 220.127.116.11
PowerShot SX720 HS - Version 18.104.22.168
PowerShot G1X Mark III - Version 22.214.171.124
PowerShot G7X Mark II - Version 126.96.36.199
PowerShot G9X Mark II - Version 188.8.131.52
04/20/2023: New firmware version 1.4.1 is available for EOS R3
03/30/2023: New firmware updates are available.
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
03/30/2023: Product Advisory for EOS R10
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
Canon U.S.A Inc. All Rights Reserved. Reproduction in whole or part without permission is prohibited.