02-23-2023 01:48 AM - edited 02-23-2023 01:51 AM
As long as my 24-70 is at f/2.8, it works fine regardless of the other settings. But, as soon as I change the f-stop, I get the Err 01 message. Yes, I've cleaned the contacts, and, as usual, it does absolutely nothing. Is there any way to fix this, or am I stuck in f/2.8 forever?
02-23-2023 06:23 AM
It sounds like the flex cable in the lens has failed. Which version of the 24-70mm lens the original or the Mark II. This was a common problem with the original 24-70mm.
Current Gear: EOS 5D Mark IV, EF 16-35mm F/2.8L III USM, EF 24-70mm F/2.8L II USM, EF 50 F/1.8 STM, EF 85mm F/1.8 USM, EF 70-200mm F/2.8L IS III USM, 470EX-AI & 600EX II-RT
Retired Gear: EOS 40D & Sigma 17-50mm F/2.8 EX DC OS HSM
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 18.104.22.168
PowerShot SX420 IS - Version 22.214.171.124
PowerShot 620 HS - Version 126.96.36.199
PowerShot SX720 HS - Version 188.8.131.52
PowerShot G1X Mark III - Version 184.108.40.206
PowerShot G7X Mark II - Version 220.127.116.11
PowerShot G9X Mark II - Version 18.104.22.168
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.