April 2008
Intermediate to advanced
176 pages
5h 45m
English
Content preview from Practical Artistry: Light & Exposure for Digital Photographers
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35
Understanding Exposure
The Alabama Hills lie east of the Sierra Nevada Mountains in Owens Valley, California. This
beautiful formation of jumbled rocks is a photographer’s delight.
For this photo of the Alabama Hills, with Mount Whitney in the background, I knew that my
exposure really didn’t matter because nothing was in motion (meaning I didn’t care about
shutter speed), and everything was in focus at infinity (so I didn’t care about aperture), so I
used Landscape mode (essentially, a version of Programmed Automatic with the flash disabled
that tends to select middle-of-the-road aperture and shutter speed settings).
18–700mm zoom lens at 27mm, 1/200 of a second at f/10 and ISO 200, tripod mounted.
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36 Understanding Exposure
Who could wish for a better, or more poetic, floral subject than Cherry blossoms in a light rain
on an overcast day? And yet, this is a technically and aesthetically challenging subject: wind
can make long exposures problematic, and precision of focus and depth of field is critical.
With this image, I decided that I was looking for a little bit of depth of field, but not a great
deal of depth of field.
I wanted the anthers of the Cherry blossom to be in focus, and the flower to be slightly out
of focus. I used the depth of field preview button to gauge the ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.