文档介绍：Digital Nature Photography and Adobe Photoshop
In the past few years, there’s been a lot of argument over the issue of shooting raw versus JPEG format. Some
professionals will even tell you that they don’t bother with raw; they “get it right the first time.” Personally, I don’t
buy that argument, primarily because I am much more particular about controlling color, tone, noise, and
exposure in my digital images. When you’re out in the field, where nature photographers are, it’s often hard to
tell whether exposure, color, and tone are correct by viewing images on your digital camera’s LCD. It’s difficult
to accurately view the image on that little screen while outdoors! Our internal digital camera meters usually
do a good job, but often there are more tweaks that can be made.
Advantages to shooting images in raw format and processing them in Camera Raw include
■ Artistic control. Today’s digital SLR and pact cameras can capture images in raw for-
mat, leaving the enhancements up to the digital photographer. That unprocessed image file, a dig-
ital negative, provides more artistic control. As a nature photographer, I shoot in raw format because
it gives me better creative control over the image data captured by my digital camera, especially
color. Raw format gives me an image file created exactly as the digital camera’s sensor captured it.
I can adjust white balance, tint, brightness/contrast, and hue/saturation exactly the way I want, like
in the raw image in Figure . I don’t have to settle for how my digital camera’s firmware (built-in
internal software) processes the image.
■ Exposure and white-balance correction. Shooting images in raw format gives me a huge advantage
over shooting in JPEG; I can correct nearly any exposure or urate white balance I might have
made while shooting. As a rule of thumb, getting the correct exposure and white balance is still just
good photographic practice. You have less tweaking to do later,