Not so much a method of prevention as it is a suggestion from the looks of it.
Camera Model Canon EOS DIGITAL REBEL XT
Shooting Date/Time 1/24/2008 5:19:01 PM
Shooting Mode Manual Exposure
Tv( Shutter Speed ) 1/50
Av( Aperture Value ) 2.8
Metering Mode Center-Weighted Average Metering
ISO Speed 200
Lens 60.0 mm
Focal Length 60.0 mm
Shooting Date/Time 1/24/2008 5:19:01 PM
Shooting Mode Manual Exposure
Tv( Shutter Speed ) 1/50
Av( Aperture Value ) 2.8
Metering Mode Center-Weighted Average Metering
ISO Speed 200
Lens 60.0 mm
Focal Length 60.0 mm
