Question For 30D owners...

[Pete E]

The power switch has three settings: "OFF" , "ON" and what looks like "~"

I am puzzled what the "~" setting is for?

Looking at the instructions, it seems to be associated with using the large quick control dial. However when I play around with it, I can't see any difference in the functions between when the power switch is set to "ON" and when it is set to "~" ????

Also dissapointed to find you can't shoot RAW in the basic modes

 

[Jonny]

It turns the wheel on basically, for exposure compensation and such

 

[chuckles]

... and there was me thinking it was for "Mains" electrickery.... doh!

 

[Marcel]

The third setting of the On switch, is basically On but with the Quick Control Wheel activated.

 

[CT]

Yep.. if you're shooting in Programme, AV or TV modes, the switch in that position enables the rear large thumbwheel which can then be used to dial in exposure compensation, + or -. If you look at the top right LCD display, at the bottom there's a scale which shows how much compensation you've set. (the pointer moves with the wheel)

You also get a little symbol in the viewfinder to remind you so you don't leave it set.

 

[condyk]

Just leave it on full and set the camera to turn off after 2 minutes. Start up is instant so you don't need to set on and off really.