How to get the best raw exposure, part 2

Thank you. The raw data in this raw file maxes at 12180. Clipping for A7M4 happens at 15871. Zebras are wrong if they indicate clipping.

This is an ETTR raw file:

But the shot of the back of the camera shows the red channel blown. The red channel is nowhere near blown,

I don't know precisely the conditions under which you're shooting. It is possible that they are different from any conditions that I've encountered since I've been seriously testing cameras. So if you've found something that works for you, I'm not going to try to talk you out of it. I think we both set the exposure before we set the ISO, so that's not a difference. I walk into the room, size it up, pick the base exposure, and if that's well away from ETTR at base ISO, I pick an ISO that is going to give me plenty of headroom in case conditions change somewhat. If suddenly the room got a lot brighter -- say somebody opened the curtains -- and I needed a shot right then, it would take me a couple of seconds to change ISO, where you could just fire away. But that situation is not one that I've had to dela with.

And here's what RawTherapee thinks, FWIW ...

WB applied in camera before raw ?

WB is applied before showing zebras and histograms.

did you try the next file i posted

No.

faststone histogram

As FastRawViewer indicates, 9 p;ixels are clipped, 5 in one green channel and 4 in the other.

doesnt get any closer than this in the field ,we only have max precision of 1/3 stop.

cool so that means i can accurately set my auto wb against the RGB histogram ?

In camera WB does not affect raw data.

The shot I looked at can tolerate more than +1/3 EV.
You can try the tests I've suggested to see how the zebras tolerate the subject colour and the "colour of light".

the faststone histogram looks good Hey. didnt expect it would be this accurate. i only use it for my white background confirmation.

What???

Im very interested as well i will shoot some colour images and post the results.

Jim says my greens are clipped but my camera says the reds are clipping so if i shift my WB fine colour adjustment to the green the histogram should be more accurate ?