I searched around but couldn't find anything on this.
It doesn't happen often, but every once in a while, my camera switches to Manual mode with the dial still on Av mode.
When it does happen it is after I use the camera after it has shut off from power saving mode.
1) Set the camera to Av
2) Snap some pictures
3) Put the camera away (don't turn it off)
4) Pickup the camera to take some pictures and notice that the control dials can now adjust both aperture and shutter speed.
If I switch out of Av then back again controls are Av mode again.
I guess it could be the dial gets bumped a bit and somehow toggles to M mode, but when I look on the dial, it is obviously set to Av and I can feel the normal 'click' when switching out of Av to another mode and back.
This isn't a big problem, and I've only experienced it maybe 3 times in the past 6 months or so. I was just wondering if anybody else has heard of or experienced this problem?