5D MarkII how to change Av while in Live View and 'M' mode?

I'm able to change the shutter speed with the top dial next to the shutter release, but there appears to be no way to change the aperature without getting out of live view mode. I have the camera dialed to manual 'M' mode, btw.

It should be on the rear wheel, have you disengaged the lock? If it is the same as my old 5D it is the second "on" position with the on/off switch

I just tried flipping the power switch to the most counterclockwise position and that did the trick. Seriously, Canon needs to separate the power on/off switch from exposure compensation. What does one have to do with the other, beats me.

texshooter wrote in post #17405100
I just tried flipping the power switch to the most counterclockwise position and that did the trick. Seriously, Canon needs to separate the power on/off switch from exposure compensation. What does one have to do with the other, beats me.

The power switch has nothing to do with exposure compensation, it is simply a lock mechanism that you can choose to use to disable the rear wheel, as many people find they accidentally turn it with their noses (or whatever) and don't realise until they see their images are cocked up. If you don't want to use the lock, then treat the power switch as a straight on/off switch and turn it all the way when you turn the camera on. It isn't a big deal, just don't set it to the lock position.

ALL Canon cameras have a safety lock for the rear wheel (except the entry level cameras that don't HAVE a rear wheel of course).

Some cameras have it separate from the on/off switch. It just depends on where the on/off switch is. The lock switch is always near the rear dial it locks.

Well, at least Canon has a work-around unlike Nikon according to this guy.....

https://m.youtube.com/​watch?v=Ord_owGw65c

Work around what? There's no problem to work around.

apersson850 wrote in post #17405546
Work around what?

Not reading the manual?

Manuals should be read, not deciphered. Besides, my copy has plenty of frayed edges. Moreover, why is it that I can change the shutter speed, white balance, ISO, AF points/Drive, etc all without using the Quick Control Dial while in Live View plus Manual mode--but NOT aperture? Nope. Got to unlock the darn lock every time to do that.

That's a rhetorical question, by the way.

texshooter wrote in post #17405983
Manuals should be read, not deciphered. Besides, my copy has plenty of frayed edges. Moreover, why is it that I can change the shutter speed, white balance, ISO, AF points/Drive, etc all without using the Quick Control Dial while in Live View plus Manual mode--but NOT aperture? Nope. Got to unlock the darn lock every time to do that.

That's a rhetorical question, by the way.

Those other functions DON'T USE THE QC DIAL to change them. That's why the having the QC lock switch on does not prevent changing those things.

I always flip the switch all the way to unlock when I turn on my camera. Has been the habit since the 40D. I only go back to lock position when I actually want that.

But it's true that what you lock is a physical device, not a function.

texshooter wrote in post #17405983
Manuals should be read, not deciphered. Besides, my copy has plenty of frayed edges. Moreover, why is it that I can change the shutter speed, white balance, ISO, AF points/Drive, etc all without using the Quick Control Dial while in Live View plus Manual mode--but NOT aperture? Nope. Got to unlock the darn lock every time to do that.

With respect, I think at this level, reading and understanding is a requirement. Deciphering is taking it to another level.

You absolutely CAN change aperture when in manual mode and live view. All that's necessary is to enable the Quick Control Dial once when you turn on the camera as described above and in the manual. Not every time, just once. It's really easy.

You're missing the point. If the user wants to keep the Quick Control Dial locked throughout the session he will be unable to change the aperture (while in Live View plus Manual mode). He can still change practically everything else on the fly, such as shutter speed and ISO by using the main dial, but not aperture. I reminisce of the old film cameras I grew up with that had separate top dials for ISO, Tv, and Av (Am I the only one who changes these things impromptu?). Yes, I can unlock the QC dial once when I power up the camera and leave it unlocked--and that's what I will do from now on--but that's not what I should have to do to change the aperture. I'm yawning now.

texshooter wrote in post #17406090
You're missing the point. If the user wants to keep the Quick Control Dial locked throughout the session he will be unable to change the aperture

If the user sticks it into one of the 'auto' modes then he will be unable to change the aperture. Of course, that would be a stupid thing to do.

Er, why do you want to keep the QCD locked? Most people who are advanced enough to want to be able to dial in EC don't bother. Indeed, I've never been able to work out just who it is aimed at.