 Cindy Sanders |
Cannot Get the Correct Exposure
Cindy
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Richard Lynch |
Cindy, Photography requires light, and if you are under-exposing you need one of several things to happen: - You need more light Doing the first requires changing the lighting conditions (e.g., adding a flash). Doing the second requires increasing ISO (makes the camera more sensitive to light; like high ISO film). Doing the third requires changing camera settings (increasing the aperture diameter; decreasing shutter speed). There are limitations in accord with what you are shooting. As you are looking to shoot sports/action, you do not want to lower shutter speed a lot unless you desire blur. Your other options are a wider aperture or higher ISO. If your camera delivers grainy high ISO images, you may actually need to consider different equipment. For example, I love my Sigma SD14, but it is not very good for low-light conditions. If I were to want to seriously shoot high ISO with existing light, I'd really need to get another camera (on the other hand, it is fine with long exposures and low ISO). I see why you may want a longer lens to shoot hockey, but you can pick up some additional light with a faster lens (f2.8) ... probably at no small expense, and with a trade-off on depth-of-field. So, I'm not sure that you are doing things so much 'incorrectly' as that there may not be enough in your setup and with existing lighting to support what you want to shoot. You may be able to adjust 16-bit exposures to recover some of this, but if it is a need, you'll want a better long-term solution. I hope that helps!
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- Ken Smith Contact Ken Smith Ken Smith's Gallery |
Cindy, try an experiment, preferably using the same lighting conditions as the hockey game ... put your camera on a tripod, put in aperture mode at F4, ISO 400. Click the shutter button or cable release ... then, check what the camera thinks is an auto-exposure. Is it bright enough? And if so, what is the shutter speed? My guess is it's more than 1/125th sec that you show ... unless somehow you've accidently set your exposure compensation way down; e.g., minus 3.
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Cindy Sanders |
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