"Eyron" <odd1@rogers.com> wrote in message
news:iDZWa.56671$hOa.42696@news02.bloor.is.net.cable.rogers.com...
> If I have a set shuuter speed (ie sync at 1/125 sec) and the correct
> aperature reads say  F9 .
> But I need a lower F stop to limit depth of field.
> Will minus 3 stops of exposure control alow this and give me a 3 stop
larger
> aperature?

Yes - that is what "stop" means -

> Also what would my F stop be here?

I'm not sure, but you can just use either aperture or shutter priority AE
mode and run the other up or down and find out. If you are in shutter
priority mode, then increase shutter speed until you get the f-stop you
desire. If you go aperture priority, just set the aperture you desire, and
if there is enough range, the shutter speed will match.

> Are there any drawback to use exposure compensation. ( ie noise etc.).

You aren't talking about exposure compensation; you are just setting normal
exposure. There is no drawback to any set or range of exposure combinations.
Just the effects of high vs low aperture and high vs low shutter speed.

Gary Eickmeier