exposure compensation lock out?

Greetings,

I have had more tha one occasion on my EOS 1n where the exposure

compensation button was accidentaly pressed and in turning the main

dial I have set my exposures incorrectly. I prefer to make my

compensations via f stop or shutter speed or bracket. Is there a way

to lock out this feature? The only options I know of is to change the

steping rate in the custom functions but no way to lock out the

feature. Any help is greatly apprecieated.

Thanks.

J

John: On the In, exposure compensation is "dialed in" using the quick

control wheel on the camera back (operated with your thumb) once the

rotary thumb switch adjacent to the quick control wheel is set to the

"i" position ("i" = "in" meaning "turned on", as opposed to the "o" or

"out" setting). As long as the switch is in the "o" position,

exposure comp. is not possible or is locked in to a given amount that

was previously set. In the latter case, one can set, say, -2/3 comp.

and then set the switch to "o", and that amount of comp. will remain

in effect until you unlock the switch and change it. I'm too lazy

to check my manual right now, but unless there's a custom function

that allows one to switch the functions of the two wheels with

respect to dialing in exposure comp., what I'm saying holds true.

As set from the factory, the main dial on the top left of the camera

does not automatically control exposure comp. In Manual shooting mode,

you must manually dial in changes to the aperture or shutter using

the two wheels to effect exposure comp. (depending on custom fxn

settings, one wheel controls aperture; the other, shutter speed).

Remember, the rotary thumb switch to the left of the quick control

thumb wheel enables or DISABLES exposure comp. for all auto. shooting

modes (this includes P, Av, Tv, and DEP modes)!!! Be sure to read and

RE-READ your owners manual until you KNOW the camera! In fact, there

is no exposure compensation "button"; there is only the thumb switch

and the quick dial. In Av mode (aperture value or PRIORITY), the

camera will hold aperture constant at the value you tell it, while

varying shutter speed to achieve the desired comp. In Tv mode, the

converse is done. In P mode, the camera's on-board brain decides

which value to change, and its decision is often based on its knowing

the focal length of the lens being used. For example, if your using a

400mm lens, the P mode brain will likely try to accomodate your

request for a positive change in exposure comp. by (if possible)

opening the lens up while simultaneously trying to preserve the

fastest possible shutter speed, because it knows that longer lenses

need faster shutter speeds for handholdability. It does not know if

you're using a tripod!

Correction (sorry): the main dial is, of course, on the top RIGHT of

the camera body (and is controlled by the right index finger).