The need to change between studio and handheld configurations is a common production problem and the quick release mechanism in ARRI’s QR-HD1 makes transitions fast and easy. The bridgeplate adapts to either ARRI Standard 19mm rod size or the popular ARRI 15mm rods. The Quick Release Baseplate’s unique attachment mechanism provides rock-solid camera support with a centering adjustment that compensates for variations in camera base to optical axis measurements. Full compatibility with cameras such as the Panasonic Varicam, Sony F950 and Sony HDC-1500 is thus assured. The dedicated baseplate rod holder has a unique centering system, adjustable both vertically and horizontally. The rear clamp collar post is adjustable from 1.5mm to 2mm, ensuring a solid attachment. The QR-HD1 features a mechanically locked camera base to bridgeplate attachment which can be adjusted for a perfect fit via a knurled knob on the rear of the unit. This system provides a more solid attachment than the common spring-tensioned systems. Note: The Sony F23 and RED One are not V-Lock cameras. The F23 is fully compatible with ARRIFLEX cine bridgeplates BP-3, BP-5, BP-8 and BP-9. The RED One uses a proprietary support system (available from RED) that fully conforms to the ARRI support rod standard.