O`Connor C1242-0001 User Manual

O-Focus DM (Dual Mini)

Designed to meet the exacting needs of professional camera operators and assistants, the OConnor O-Focus Dual Mini is a
compact, double-sided direct drive follow focus unit optimized for both still and cine-style camera lenses.

The precision gear drive of the main bridge is designed with a gear ratio of 1:0.75 so that 360 degrees of input (rotation of
the handwheel) results in 270 degrees of output (rotation of the drive gear). Two versions of the O-Focus DM, the Photo Set
and the Cine Set, utilize different handwheels to apply a unique transmission output in order to optimize rotation for the
relevant lens type.

O-Focus DM Photo Set

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,
more exacting 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. A small ratio change can
make a big ‘feel’ difference!

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-hand­operated hard stop on/off switch, allows for instantaneous
disengagement of the end stops for critical adjustments
even during the shot.

OConnor

A Vitec Group brand

™

O-Focus DM Cine Set

The Cine Set utilizes the existing CFF-1 Studio Handwheel
and 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 well suited for cine lenses with an
expanded focus scale.

The Studio Handwheel is offset, meaning it has 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.

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O Focus DM

O Focus DM

O-Focus DM (Dual Mini)

O-Focus DM Main Features

The modular design of the O-Focus DM enables operators
who want to transition between Photo and Cine lenses to
optimize the transmission ratio to suit simply by swapping
out the handwheel(s) – no tools required.

Both versions of the O-Focus DM feature extremely low
profiles, which allow use with large diameter lenses. The
sliding dovetail design provides adjustment for various lens
sizes, even those with very large lens barrel diameters.
Additionally, tapered flank couplings (pioneered with the
OConnor CFF-1) eliminate play between the handwheel
and bridge connection.

The O-Focus DM integrates seamlessly with existing follow
focus accessories including whips, cranks and gears. It also
shares many of the OConnor CFF-1 accessories, such as
the Studio Handwheel and Marking Discs, Handwheel
Extension and Studio 15/19mm Bridge. The new Toothless
Friction Driver, for the use of still lenses, eliminates much of
the need for additional toothed gear rings.

FEEL THE DIFFERENCE!

C1242-0001

O-Focus DM Photo Set with Hard Stop Handwheel

ŸExtremely low profile double sided bridge design

ŸDirect drive gear box with no swing arm

ŸAdjustable via sliding dovetail to various lens diameters

ŸCompatible with large lens barrel diameters

ŸPhoto set yields industry first 1:0.75 gear ratio for photo

lenses

ŸModular design enables gear ratio to be optimized

through swap out handwheels

Order Codes

C1242-0001 OConnor O-Focus DM Photo Set

Set includes:
C1242-1100 O-Focus Hard Stop Handwheel
C1242-1300 O-Focus DM Main Bridge
C1241-1540 15mm LWS Bridge
C1241-1600 Gear .8 mod 43 Tooth 6mm Face
C1241-1700 Gear .8 mod 35 Tooth 10mm Face
C1241-1800 Gear .6 mod 50 Tooth 7.5mm Face
C1241-1900 Gear .5 mod 60 Tooth 7.5mm Face
C1242-1001 Gear Friction Driver
C1242-1530 10 Pack Conical Marking Discs

C1242-0002

O-Focus DM Cine Set with offset Studio Handwheel

C1242-1001

New! Toothless Friction Driver

C1242-0002 O-Focus DM Cine Lens Set

Set includes:
C1241-1100 CFF-1 Studio Hand wheel
C1242-1300 O-Focus DM Main Bridge
C1241-1540 15mm LWS Bridge
C1241-1600 Gear .8 mod 43 Tooth 6mm Face
C1241-1700 Gear .8 mod 35 Tooth 10mm Face
C1241-1800 Gear .6 mod 50 Tooth 7.5mm Face
C1241-1900 Gear .5 mod 60 Tooth 7.5mm Face
C1242-1001 Gear Friction Driver
C1241-1530 10 Pack Flat Studio Marking Discs

OConnor

A Vitec Group brand

™

Version 3en

3.06.12

http://www.ocon.com