 In a microdiffraction experiment researchers may focus on a particular island, terrace, domain and so on, and retrieve a diffraction pattern composed solely of a single surface feature, making the technique extremely useful.Bright Field imaging uses the specular, reflected, (0,0) beam to form an image.Also known as phase or interference contrast imaging, bright field imaging makes particular use of the wave nature of the electron to generate vertical diffraction contrast, making steps on the surface visible.