Gear Talk > EOS Bodies - For Stills

5D Mark III Spot Meter

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vitaminj08:
So as I was shooting my little twin cousins this weekend while they were collecting their Easter eggs, I was messing around with trying to use spot metering instead the typical evaluative metering. No matter what I did, my camera always spot metered the very middle of my composition. I was shooting wide open so I was using Spot AF and using my outermost focus points at times. I could easily be wrong, but I thought my 40D allowed me to spot meter wherever my focus point was, not only the center point. Is there a custom function I'm missing or something?

To confirm my speculations, I walked into the house and experimented with metering off open windows and the wall beside it. Yep, it was definitely ONLY reading the very center.

jrod:
Unfortunately AF linked spot metering is limited to the 1 series. Spot metering on the MkIII is limited only to the center of the VF. The closest you can get on the MkIII is the evaluative mode which will weight the metering to the selected focus point.

Z:
Like jrod said, spot metering off designated AF points is limited to 1 series bodies.

For the 5D III you have to point the center spot at your desired target, press the AE Lock button, then do your recomposing and focusing.

mrmarks:
In the 5D3, only the evaluative mode (and AE lock in evaluative mode) has metering capability linked to the selected AF point. This info can be found in the manual.

Ryant:
Wow, now I understand why my metering has been off. I keep getting shots at the wrong exposure. I thought it was just funky lighting throwing off the sensor. I never switched focus points on the 5d 2 because the other points were basically crap. I tested evaluative mode and it does not use the focus points either. I pointed the 5d mark iii at a lamp next to a dark window and with evaluative mode on i moved the focus point around and it did not change the meter. I cant believe it cant do this, considering the cost of the camera. My iphone can meter to specific spots on its screen. Not that its a fair comparison, but its a 3500 camera.

Ryan

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