On the shooting mode dial on top of the 40D (or other canon EOS cameras)...is it possible to set one of the user defined modes to an exposure value such as 1/100 @ f16 @ISO 100 (sunny day f16 rule) and then use one of the camera's setting wheels to shift the values within the same exposure IE: 1/200 @ f11, 1/400 @ f8, 1/800 @ f5.6 etc.
Thanks

