Ok, a village is missing its idiot.
I am going through a bit of confusion reading the manual and "Idiot's guide to" book.
I also now realise there *IS* a difference with something on the camera.
I have played with Bracketed metering and exposure compensation.
But sometimes when I am trying to do one thing, I get the other happening by "mistake".
Reading the "Idiot's guide" I was reading about EXPOSURE COMPENSATION and suddenly they are mentioning BRACKETED METERING, and to do one, you use the left/right arrow, and the other you use the wheel.
Anyway, I don't want to babel on with that part of it.
Here is where I am confused.
Camera 550D EOS.
Av Tv M mode.
For now Av mode.
I press the AV+/- button (Just above the Q button.
The "Cursor" jumps down to the meter bar - just below the F-Stop number.
I turn the wheel and this moves left/right and is the (what I believe to be) the EXPOSURE COMPENSATION value.
Ok. Back to Status Quo.
Now I press the Q button.
The meter bar is highlited and at the bottom is "Exposure comp./AEB setting."
If I don't press the SET button, turning the wheel moves the bar left/right in a similar way that it did when I only pressed the AV+/- button.
Is there a difference between this way and what happens when I simply press (and hold) the AV+/- button and turn the wheel?
Granted I press the Q button and don't have to hold it as with the AV+/- button to adjust the EXPOSURE COMPENSATION value.
Now, I press the SET button from this "mode":
The screen then changes to the bar graph and I get the message about the Exposure compensation or AEB options.
It shows me CLEARLY that the arrow buttons do one thing and the wheel changing the other.
I think I get this part.
But the two ways it SEEMS to show me how to do exposure compensation, but one way the display is "normal" but the other way the display is reversed/highlited.
Is it just in one mode where I don't have to hold the AV+/- button I have to HOLD the button, but by pressing the Q button and NOT needing to hold it down the inverted display is used to show me the active part?