Shot noise is one of the many forms of noise inherently found in digital imaging systems that can hinder the clarity of a feature within an image. Because shot noise trends with the square root of the signal intensity, it makes it especially difficult to resolve light-levels (or grey values) of details defined b slight differences in bright areas within an image.

Because of this problem, Phantom was released a new methodology called Bright Field (BF) mode - a new camera mode specifically designed specifically to reduce the impact of shot noise, improve image quality by better resolving light-levels in the bright areas of each image. 
Bright Mode Test