Novoflex Q=Mount Arca-Type Manual-Locking Quick Release Adapter - Requires Plate The Novoflex manual Q=MOUNT quick release adapter complements the popular automatic Q=BASE quick release system from Novoflex to offer users of digital and analog cameras or camcorders an ideal mounting option for their valuable equipment. The elegant round shape of the Q=MOUNT is a perfect combination of form and function. The adapter can be used with all conventional tripod heads or other mounting units with a 1/4" or 3/8" stud. In contrast to the automatic Q=BASE quick release system, Q=MOUNT is a manual quick release system. It has two decisive improvements over other manual systems. First, a safety pin in conjunction with the interchangeable Novoflex Q=PLATE mounting plates prevents the plates from slipping out in either direction. Second, the high precision double thread makes mounting extremely fast: a fraction of a turn does the trick, there's no need to turn and turn endlessly.