Canon PowerShot G5; Opening The Door To Raw Processing Power
As full featured 5+ megapixel
cameras are becoming quite common, a digicam is no longer viewed as
something that's intended only for snap shooting. In fact, a growing
number of photo enthusiasts are considering one of these models for
their "serious" image-making. While some will buy a digital
SLR camera that accepts interchangeable lenses, others appreciate the
benefits of more portable equipment. They're shopping around for
a compact digicam with many of the same capabilities as an SLR, such
as the Canon PowerShot G5.
Pros And Cons Of Raw
·The next advantage is
the most significant. When compared to a JPEG, a raw file offers much
greater latitude for correction of factors such as white balance, exposure,
and color saturation. Open a raw image with the special software and manipulate
it as desired to achieve technical accuracy or an intended effect. When
the image looks close to perfect, save it in TIFF or another format that's
compatible with all image-editing software.
·The raw file conversion process can be time consuming: about 40 seconds per image, in addition to the time required to correct any image parameters. The workflow process certainly becomes tedious when you must convert dozens of images after a long trip or a major event.
Raw Capture Mode Evaluation
Let's say you were shooting
under sodium-vapor lighting with auto white balance, and your images all
exhibit a strong color cast. Perhaps you inadvertently set spot metering
instead of evaluative metering and many of your images of sky capped mountains
are underexposed. Or you set the color saturation level to High in camera,
and find that skin tones are much too ruddy. No problem if you were shooting
in raw mode. These serious errors (and others) can all be corrected without
damaging the image, in the conversion utility software.
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