Digital Zoom is the type of zoom that crops the image and enlarges the cropped image to fill the frame of the camera. Digital zoom is a method of decreasing the apparent angle of view of adigital photographic or video image. Digital zoom is accomplished by cropping an image down to a centered area with the same aspect ratio as the original, and usually also interpolating the result back up to the pixel dimensions of the original. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.