OConnor, the producer of  fluid heads, announced the O-Focus Dual Mini, a compact, double-sided direct drive follow focus unit optimized for both still and cine-style camera lenses.The gear drive of the main bridge is designed with a gear ratio of 1:0.75 so that 360 degrees of input results in 270 degrees of output.

There are two versions of the O-Focus DM, the Photo Set and the Cine Set, each with its own unique transmission ratio. The difference is in the use of two different types of handwheels that interface with the main bridge to generate optimized transmission output. The handwheel can be easily swapped out without the need to use any tools, which is a very nice feature.

The Photo Set utilizes a new Hard Stop Handwheel, which has a transmission ratio of 1:1 (input: output). When coupled with the O-Focus Bridge, it yields a follow focus industry first; a 1:0.75 transmission ratio. This translates to longer focus pulls when using limited barrel rotation still lenses for digital cinematography, and allows more precise lens control than has previously been available for these camera configurations. In addition, the hard stops enable the operator to set minimum and maximum focus points for lenses with unlimited rotation and to carry out hard focus stop pulls. To allow the focus-puller to react to unexpected movements, the unique single-hand-operated hard stop on/off switch, allows for instantaneous disengagement of the end stops for critical adjustments even during the shot.

The Cine Set on the other hand, has a transmission ratio of 1:1.8 (input:output). When coupled with the O-Focus Bridge it yields a 1:1.4 output transmission ratio which is great for cine lenses with an expanded focus scale. The Studio Handwheel has a 360 degree rotation for optimum placement and view of lens witness marks, and allows the camera to be set on the ground without the rig weight resting on the handwheel.

Both versions of the O-Focus DM feature very low profiles, which allow the use of large diameter lenses.

The O-Focus DM Cine Set and O-Focus DM Photo Set are both available now - there is no information on pricing but you might want to check out the official website to find and contact a distributor (here).

Source: http://www.ocon.com