To change back to shutter button focus go to: Menu - second last tab (which shows the camera icon); then go to the second tab within here and select "Custom controls". The first button within here says "Shutter butt. half-press" - select this and change it to "Metering and AF Start". If you see the Canon camera icon in the System Tray near the System Clock, then right-click on the icon and select “Exit.” "The right mouse button is your friend." 1 Like
Set the ISO. ISO is the third part of the exposure triangle. To set it, press the ISO button on the top of your camera and then use either the shutter speed dial or the D-pad on the back of the camera to select the ISO you want to use. Press the ISO button again, press the shutter button halfway down, or the use the SET button on the D-pad to
Click Start and type device manager. In the search results, click Device Manager. Find your camera under Cameras, Imaging devices, or Sound, video and game controllers. If the camera is not detected, click the Action menu on top and then select Scan for hardware changes. Wait for Windows to scan and reinstall updated drivers.
Unfortunately by dropping the camera you may have knocked a connection loose inside the body. You would have to take it apart to inspect that area where those controls are to start and if you are lucky you will find and fix the connection.
Applications may not be assigned to the Scanner Buttons(Windows/Macintosh OS X v.10.3.x, 10.3.9 or later) Steps to start MP Navigator EX when a Scanner Button is pressed. Specifying the Scanner Button settings using MP Navigator EX allows you to scan documents easily. See [ Scanner Button Settings via MP Navigator EX].
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