photo tip of the day: exposure modes

JJ’s random photo tip of the day: Why to use Manual Exposure mode
The two images to the right were taken split seconds apart,
by a camera set to Aperture-Priority mode.
The lighting did not change between the two frames,
and yet the second frame is over-exposed.
This isn’t a case of the sun coming out from behind the clouds and making the second frame overexposed.
The only thing that changed is that I walked a little bit more into the frame.
The second frame is overexposed because the dark shadow of my shirt taking over more of the frame threw off the exposure. The camera saw the patch of dark, thought that it was *too* dark and so let in more light to compensate, thus creating an image that is actually *too* bright.
Automatic modes are just fine if you want to make average pictures in average situations. They are easily fooled though, because they assume that your subject is evenly lit, and of average values.
If you want to make above-average images in non-average circumstances,
you’ll need to learn to work with manual exposure.
No matter how sophisticated the camera’s metering system may be, you are still a whole lot smarter than it is. The learning curve is a little bit steeper, but in the long run you’ll get better exposed photographs.
Remember, the light is never too bright, or too dark for a picture.
It’s simply that your photo may be over or under exposed,
and you might not yet be thinking about how the light works
in your particular composition.
Happy shooting!
-jj
PS these images are from JJ’s Magic Photo Booth at the 2009 Roots Picnic on Penn’s Landing in Philadelphia. See an animation of the making-of by clicking here, or to see the final images, click here.
PPS Bring me in for a workshop: www.jjtiziou.net/teaching




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