Are All Digital Cameras Equipped with Anti Blooming Photo Sensors?
Digital cameras work with photo sensors instead of film. These sensors read the light in images and translate them into pixels. Some digital cameras offer anti-blooming sensors, but not all do.
Blooming is an effect caused by the optics of your lens. It occurs when there is a light source in an image that is much brighter than the exposure. An example is shooting indoors on a bright day with a window in your frame. Your exposure is set for indoors and the sun is much brighter than your lights. The light from the sun ends up spilling out of the window frame creating a halo effect. You're either going to want it or really hate it.
Because a digital image is made of pixels, anti blooming recognizes when an excessive amount of light is spilling out of a pixel into others. Because of the nature of ccd, the light tends to spill in vertical patterns. Anti-blooming sensors recognize when this is happening and removes the extra light, and thus blooming is gone.
Because the sensor removes excess light, you might find yourself fighting it in situations when you are shooting in a room with low light. You should leave the feature off and only use it when necessary.