OConnor O-Focus Dual Mini Photo Set

The C1242-1530 Conical Marking Discs for Follow Focus Unit, 10 Pack from Oconnor are replaceable cone shaped marking discs for the knobs of select follow focus units. The discs snap onto the knob, and you can use non-permanent type markers such as wet or dry erase for your focus marks. The angled surface makes it easier to view focus marks when the focus puller is off to the side of the camera, or when the camera operator is the one pulling focus off of the focus marks.


The OConnor O-Focus Dual Mini Photo Set is a follow focus system equipped with a Hard Stop Handwheel and designed double-sided to optionally also accommodate a Cine Handwheel.

The Dual Mini attaches to a lens by sliding dovetail and is adjustable thus to various lens diameters. Its main bridge is very low-profile and has a gear drive ratio of 1:0.75, which produces 270° of rotation for every 360° that the handwheel is turned, and which hence affords longer, more exacting pull on limited rotation still lenses.

The Hard Stop wheel features a transmission ratio of 1:1 and so maintains the gear driver's longer pull. The wheel offers also the benefit of setting minimum and maximum focus points for infinite rotation lenses, and of performing hard stop pulls, and, moreover, of an on/off switch it has that at the employ of a hand instantly disengages end stops so that important adjustments can be made during sudden moments in a scene.

The Dual Mini is made of lightweight, durable black anodized aluminum. Its bridge can be used with an included LWS rod bridge, or, optionally, with 15/19mm studio rod systems, and also with interchangeable gears, and with a handwheel extension. Its low-profile design with no swing arm and with a direct-drive gear box is ideal for large barrel diameter lenses.


Dual Mini

  • Equipped with a Hard Stop Handwheel for photo lenses.
  • Double-sided to optionally also accommodate a Cine Handwheel.
  • Adjustable to various lens diameters by way of a sliding dovetail design.
  • The main bridge is low-profile and has a direct-drive gear box and no swing arm.
  • The bridge's gear ratio is 1:0.75, which produces a 270° output for every 360° of input.

Hard Stop Handwheel

  • Achieves longer, more exacting pull with limited rotation still lenses.
  • Features a 1:1 transmission ratio that maintains the Dual Mini's 270° of output.
  • Allows minimum and maximum focus points to be set and hard stop pulls to be performed.
  • Equipped with an on/off switch that disengages end stops so important adjustments can be made.
General Specifications
Lens Diameter Max diameter (with LW rods included): 11.6mm
Transmission Ratio Main bridge: 1:0.75
Handwheel: 1:1
Coupled: 1:0.75
Positioning of Driver Gear Main bridge interlock (back/front)
Module Coupling System Backlash-free
Drive Gear Coupling Standard serrated star
Compatibility 15mm LWS, studio 15mm/19mm rod systems
Dimensions Unit excluding handwheel: 7.2 x 2.2 x 1.5" (18.2 x 5.7 x 3.7 cm)
Hard-stop handwheel: 3.2 x 3.7" (8.2 x 9.4 cm)
Total Weight 1.23 lbs (.56 kg)

What's Included

  • O-Focus Hard Stop Handwheel
  • O Focus Main Bridge
  • LWS Rod Bridge (15mm)
  • Driver Gear (43 Teeth, 0.8M, 6mm Face, Cine)
  • Driver Gear (35 Teeth, 0.8M, 10mm Face, Cine)
  • Driver Gear (50 Teeth, 0.6M, 7.5mm Face, Fujinon ENG Focus)
  • Driver Gear (60 Teeth, 0.5M, 7.5mm Face, Canon ENG Focus)
  • Gear Friction Driver
  • 10 Pack Conical Marking Discs
  • 1-Year Parts and Labor Warranty

Write Your Own Review
You're reviewing:OConnor O-Focus Dual Mini Photo Set
Your Rating