Integral film cameras, such as the SX-70, 600 series, Spectra, and Captiva cameras went a long way in accomplishing Edwin Land's goal of creating a seamless process in producing instant photos. The photographer simply pointed the camera at the subject, framed it and took the photo. The camera and film did the rest, including adjusting the exposure settings, taking care of focusing (Sonar autofocus models only), utilising a flash if necessary (600 series and up), and ejecting the film, which developed without intervention from the photographer. The new design of the frame film for the SX-70 cameras allowed for their convenient usage. With all of the ingredients necessary to develop the photograph in the thicker portion of the frame, the user only has to take the photo to initiate the reaction which provided them their photo.