How do I turn my Auto ISO off? I can't get a cust...

Try pushing the menu button and selecting "shooting menu". There you should find options for: Image Mode, Whire Balance, Continuous Shooting, ISO, and Color options.
Setting the White Balance to "Auto" actually produces the most accurate and reliable results.

Hi dear chrisofoto, You can change the ISO sensitivity setting by pressing the ISO button and rotating the command dial, also the white balance by pressing the WB button and rotating the command dial to get the desired value.
Best regards

When using the programmed modes, like portrait, kids, etc. you cannot set the ISO speed manually. The reason for this is because in those modes you are asking the camera "can you please set ideal settings (ISO, shutter speed, aperture, etc.) in order to capture a great image in this situation?" You can only set ISO levels when using programmed (P) mode where you can set ISO, white balance, etc.

Be sure you are using an auto mode. Have the white balance set to "auto wb"...the ISO to "auto ISO" or somewhere between 100 to 400.

you say.. "used to" does that mean it doesn't do it now?

overexposure is caused by setting the wrong ASA ( film speed) oon digital you set the ISO which is the digital equivalent.

GO TO MENU and set ISO to auto and WB (White balance to auto) EX(IT

See if that imoroves the outcome.

some ISO settings in models akllow individual selections of numerical values for different lighting.
ISO 64, 120, 250, 500, 1000. etc

1000 is for very low light (fast film ) 64 is for brighter conditions like average daylight

Please rate my help++++Thanks for using FIXYA

Check to see if your ISO is set to a high number like 800 or 1600. If so, set it lower or on auto ISO. Your white balance should probably be on auto white balance. Go into the setup menu and see if your camera has a setting for "reset". This could take your camera back to factory defaults.

Have you set the 400 ISO, or do you have the camera on Auto ISO?
Go back to your setup menus and set the Sensitivity to the lowest ISO value possible.  Now set the White Balance to Auto. Exit the menus.
Now set the camera to P for program. In effect, you have turned the camera into a point-and-shoot dimwit. It should now take reasonably well exposed shots indoor and outdoor.
If the shutter speed does not register on the body, you should put the dial on Tv and see if you can alter the speeds.  Remember, not all finctions are available for all dial settings.

By pressing the center button on the four-way controller, you'll open up the Function menu. This menu has the following options:

• ISO speed (Auto, High ISO Auto, 80, 100, 200, 400, 800) -
• White balance (Auto, daylight, cloudy, tungsten, fluorescent, fluorescent H, underwater, custom) -
• Drive (Single-shot, continuous, self-timer [2 or 10 sec, custom] -
• My Colors (Off, vivid, neutral, sepia, black & white, positive film, lighter skin tone, darker skin tone, vivid blue, vivid green, vivid red, custom color) -
• Flash exposure compensation (-2EV to +2EV in 1/3EV increments) - in manual mode you can adjust the flash strength in three steps (1/3, 2/3, full)
• Metering (Evaluative, center-weighted, spot)
• Compression
• Resolution

- Lisa

http://www.dcresource.com/reviews/canon/powershot_a630_a640-review/

Press the Center Button

By pressing the center button on the four-way controller, you'll open up the Function menu. This menu has the following options:

• ISO speed (Auto, High ISO Auto, 80, 100, 200, 400, 800, 1600) - see below
• White balance (Auto, daylight, cloudy, tungsten, fluorescent, fluorescent H, underwater, custom) - see below
• Drive (Single-shot, continuous, 2 or 10 sec self-timer, custom self-timer)
• My Colors (Off, vivid, neutral, sepia, black & white, custom color) - see below
• Flash compensation (-2EV to +2EV in 1/3EV increments) + flash output (1/3, 2/3, full) - this last item is only available in manual mode
• Metering mode (Evaluative, center-weighted, spot)
• Compression (see chart later in review)
• Resolution (see chart later in review)

The Third Option is Having Self Timer ..... Check

The sensor for the auto-ISO may be working incorrectly. Try changing the ISO manually for different light modes. You can also try to change the white balance of the LCD. -Setting the white balance: 1. Set the camera to still image mode 2. Press the "Set" button 3. "White Balance" should be the current selection 4. Press the "Flower" button or "Flash" button to move through the available options for white balance 5. Press "Set" again when change appropriately - Setting the ISO: The higher the ISO value, the less light the camera needs to make an exposure, allowing the same exposure to be achieved with higher shutter speeds or smaller apertures. In a digital camera, higher ISO value allows higher shutter speed, at the expense of mottled or grain appearing in the final picture. 1. Set the camera to Still Image mode. 2. Press the "Set" button. 3. Press the "scn" or "timer" button to select ?ISO?. 4. Press the "Flower" or "Flash" button to select the desired setting. 5. Press the "set" button to select. 50/100/200 In the same lighting condition, the higher the ISO value is, the faster the shutter speed will be. I hope this helps.