A photographer using the ExpoAperture2 Depth-of-Field Guide simply selects the camera’s sensor or film size and desired focal length for a given shot.  The Guide quickly provides the resulting depth-of-field for a given aperture, or, alternatively, determines the aperture necessary to achieve a desired depth-of-field.  The Guide also easily calculates hyperfocal distances.  The Guide is designed so that beginning and experienced photographers alike can quickly compare the relative variables (aperture, lens focal length and subject distance) to determine which combination works best for their chosen shot.  In this way, the Guide enables photographers to exercise better creative control over their cameras and images.