Courtesy of Intova www.intova.net
Underwater photography is much different than land photography. Light and color loss, water clarity, currents and housing condensation are all elements that affect underwater photography. The large Dive Certification organizations have complete classes dedicated to Digital Underwater photography. Digital cameras are complex and need to be understood and set properly to obtain best results.
BLURRY PICTURES: The most common cause of blurry photos is not holding the camera steady. As simple as this sounds, it is much harder to do underwater than on land. Camera and body buoyancy, currents and wave action all affect camera stability. Make sure to squeeze the shutter button with steady pressure. A hard push of the button will cause camera to jerk in your hand-the single most common cause of blurry pictures. If the entire image is blurry, this usually means the camera was not held steady. Another leading cause is incorrect camera settings. With low light underwater, the camera may automatically change the shutter speed (slower) and aperture (larger). This makes the camera extremely susceptible to “shake”. A good mode setting for underwater photography is Sports. In this mode, camera will adjust for faster shutter and smaller aperture size helping enable better results. If you use Auto or Program mode, be sure to set the White Balance for low light or fluorescent. If the subject is blurry but the rest of the picture is sharp, the issue is camera settings and not shake. It is recommended to use Sports mode to photography moving objects underwater.
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