09-16-2013 02:56 PM
09-16-2013 03:36 PM
I think you're confusing terms here. Cameras don't have aperture rings, and modern day lenses don't either. Can you try re-explaining what the problem is?
09-16-2013 03:41 PM
Maybe he cannot change the aperture.
09-16-2013 03:46 PM
Yeah, I thought that might be it, but we'd still need more info on what s/he's trying to do.
What setting are you using? Which knob(s) are you turning? Which version of the 5D do you have?
09-16-2013 03:50 PM
I should have said the aperture dial on the rear of the Canon 5D Mark II. Turning the the dail normally adjusts the the aperture. Now it only works in the "Auto ISO" mode. The camera is primarily used to should HD video. Any ISO setting other than "Auto" will not allow the the dial to change the aperture. Any ideas? Thanks for your help.
09-16-2013 07:12 PM
So this is a 5D II? That's an important detail.
In "M" (Manual) mode, the default is that the front dial controls the shutter speed, and the rear dial controls the aperture IF you throw the switch in the position which enables the rear dial. The power switch has three positions... (1) "OFF", (2) "ON", and (3) a position with a line drawn connecting to the rear dial. The power switch must be in the position that points to the rear dial or it wont work to control aperture.
In P, Av, or Tv mode the rear dial will control exposure compensation (but only after you activate metering.) Again... the switch has to be in the position that points to the rear dial.
This is how Canon handles the rear dial lock function and I've known 5D II shooters who hadn't realized this nuance. On the 5D III is a bit more straight forward because the on/off switch is just an on/off switch and there's a seperate switch near the rear dial labeled "Lock" which disables the rear dial.
Some photographers want to disable the rear dial because they feel it's too easy to accidentally bump it when setting up for a shot and get unintended exposures.
09-17-2013 09:32 AM
Just for kicks, clear custom controls.
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 220.127.116.11
PowerShot SX420 IS - Version 18.104.22.168
PowerShot 620 HS - Version 22.214.171.124
PowerShot SX720 HS - Version 126.96.36.199
PowerShot G1X Mark III - Version 188.8.131.52
PowerShot G7X Mark II - Version 184.108.40.206
PowerShot G9X Mark II - Version 220.127.116.11
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.