Autofocus needs only 0.07 seconds with the 'Depth from Defocus' autofocus system. Most lack manual adjustments, audio input, autofocus and zoom. The camera also includes phase detection autofocus. The lens also reduces autofocus speed when a teleconverter is attached to improve autofocus accuracy. Teleconverters need a fast lens for fast, reliable autofocus. It is used for setting the lens to either autofocus mode, or manual focus. The 7000 had TTL phase-detection focusing and metering, autoexposure, and predictive autofocus. It also supports autofocus, image stabilization, and video stabilization. HDR is supported, but the device lacks phase-detection autofocus and optical image stabilization. The front-facing camera was upgraded to an 8-megapixel sensor with autofocus. The camera also contains phase-detection autofocus, laser autofocus, and HDR+ processing. Sonar OneStep was the first autofocus single-lens reflex camera, released in 1978. Minolta purchased the patent rights to autofocus lens technology from Leica Camera in the 1970s. All current film and digital SLR cameras produced by Canon use the EOS autofocus system. Also listed is the autofocus and image stabilization functionality.