The popular HD series of 3-Way heads provides more precise movement and positioning of the camera compared to BallHead heads. Now the Benro HD series has been improved, redesigned, and offers greater flexibility than before. There are two important changes in the overall design of the head. The first is that it now includes an Arca-Swiss compatible plate with the Pull/Twist safety feature. Many photographers already have tripod kits with heads that are compatible with Arca-Swiss, so photographers can interchange heads without having to change the QR plate. The second upgrade is that the new design now incorporates 3 independent levels for precise positioning. Reference scales have also been added to the HD2A and HD3A models so that your settings can be easily reproduced. All models offer lateral tilt from -90/+15, forward and backward tilt -35/+90, and full 360-degree rotation. There are three models in the series designed to carry a maximum load of 5kg (HD1A), 8kg (HD2A), and 12kg (HD3A).