EOS R5 Mark II: BBF and AE Lock

[thegios]

I have triple BBF configured

- SHUTTER: Metering Start
- AF-ON: Metering and AF Start
- *: Metering and AF Start but with subject detecnion OFF
- FOCUS POINT SELECTION: Af with eye control

How do I lock exposure now?

I am asking because people keep on telling me that by half pressing shutter the exposure is supposed to be locked, but this is not the case in any metering mode and/or shooting mode and/or focusing mode.
Thx

[stevet1]

thegios,

What does your manual say about AE lock?

I know that on my camera, half-pressing the shutter takes an exposure reading, but doesn't lock it. That's done by pressing the * button.

Steve Thomas

[thegios]

R5 Mk2 (like also R5 and R6 Mk2 and many other Rx) have by default AE-LOCK assigned to * button and shutter button doing both metering adn AF. When you do BBF you remove AF from shutter and assign it to another button. In my case I have three buttoins doing BBF: AF-ON, * and focus-points selection (all three doing different Af stuff).
I am left with no buttons for AE lock.
I could assign AE Lock to shutter button, like Fuji cameras do, but KI am not sure if this makes sense.

[p4pictures]

There are other choices for where to put the AE lock, and even the type of lock you want. One option is to use the depth of field preview button, though actually I would suggest using AE-lock with hold on that one. You just have to remember to press it to lock the exposure and then press it again to unlock the exposure. 

Check this section of the manual to find out what buttons you can assign for the AE lock you want to use. 

https://cam.start.canon/en/C017/manual/html/UG-08_Customize_0030.html 

[stevet1]

thegios,

I have a T8i, which is not as sophisticated as your camera, but I have mine set up so that the shutter button does the metering, and the AF-ON button does the focusing. The * button locks the metering, and if I want to HOLD that lock for longer than the standard six seconds, I hold down on the AF-ON button.

I also use AI Servo exclusively.

Steve Thomas