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Old Feb 12, 2008, 10:15 PM   #1
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Join Date: Jun 2005
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The Canon SD750 doesn't have a manual control or a sport setting. Does anyone have an idea of how i increase the shutter speed? the specs say that the camera max is 1/1500. I'm looking how to 'force' the shutter speed to increase. Any ideas?
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Old Feb 13, 2008, 7:28 AM   #2
Join Date: Jun 2003
Location: Savannah, GA (USA)
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You can't just use any shutter speed you want. If the shutter is not left open long enough, you'll end up with an underexposed (too dark) image. ;-)

Ways to get your camera to use a faster shutter speed than it's using now. It sounds like you're probably getting blurry photos in low light.

* Increase Light

* Increase your ISO Speed. Your SD750 will let you set it from what I can tell of it's review here. ISO Speed represents how sensitive the film or sensor is to light. The higher the ISO speed, the faster the camera can "expose" the film or sensor.

Each time you double the ISO speed, the camera can use shutter speeds twice as fast for any given lighting and aperture setting.

* Don't zoom in as much. The lens on your SD750 is about 3 times as bright at it's wide angle setting (least apparent magnification), compared to it's full telephoto zoom setting (most apparent magnification). If you stay on the wider end of your available zoom range, the camera can use faster shutter speeds for any given lighting and ISO speed, because it will have a wider available aperture setting (represented by a smaller f/stop number).

* Use a -EV setting with Exposure Compensation. In low light, the camera will probably keep the aperture wide open, and use a faster shutter speed to expose the image darker than it's meter thinks it needs to be exposed if you use a -EV setting.

This approach is not usually recommended, since it results in underexposed (too dark) images. When you brighten the images later, you'll have more visible noise, just as if you'd used a higher ISO speed to begin with. Dynamic Range is also degraded with this approach. You're better off using a higher ISO speed and properly exposing the scene to begin with using most camera models.

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