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Preston HU3 Hand Unit for FI+Z System

Preston Cinema Systems
Abel Code: PR-4060-G4
Mfr. Code: 4060-G4
Estimated to Ship – 2-4 months
Special Order Only
This is a special order item. You will be charged upon placing your order, which is non-cancelable and non-returnable.
This FIZ hand unit features a 30 channel, 2.4GHz wireless link in a splash-resistant housing, giving focus pullers a robust and reliable LCS solution.
Key Highlights
  • Compatible with Preston MDR-3
  • Lens Mapping Capability
  • (5) Pre-Marked Focus Rings


The Preston HU3 Hand Unit for FI+Z System gives focus pullers not only a robust and reliable unit but one whose controls equip the focus puller to smoothly translate the changing actors' positions on set to a precise movement of the focus knob. The iris slider uses a unique non contact technology to eliminate the opening required for a conventional sliding seal. The HU3 allows for programming camera speed and shutter angle. Power is provided via FM-50 Li-Ion batteries (not included).

Generation 4 (G4) transceivers address the challenges brought about by the proliferation of wireless devices using the 2.4 GHz wireless band. Their new architecture results in a greatly improved ability to reject interference from other devices operating in the same band as well as out of band interference. The improvement in performance is quite significant, typically 10x or better interference rejection than previous transceivers.

In addition, their lower power consumption doubles the operating time of the HU3 on battery power compared to its predecessor. The latest "Blue Dot" version of the transceiver adds channels 30 – 59. These new channels allow FI+Z units to operate in very close proximity (<1m) without interference.

The HU3 integrates its 30 channel, 2.4GHz wireless link into a new splash-resistant housing. Weather-sealed, tactile switches are used throughout. The integrated microwave antenna is protected from impact. The iris slider uses a unique non contact technology to eliminate the opening required for a conventional sliding seal. 

New software called "Lens Mapping" matches the focus distances of a lens to a set of five pre-printed Focus Marking Rings. These rings differ in their minimum focus distance from 9" (.35m) to 6' (2m). The on-board lens library holds data for 255 lenses: lens changes require only the few seconds to choose the lens from the library. Lens calibration is fast and doesn’t require connection to an external computer.

The primary references for the focus puller are the distance marks on the focus rings. The set of focus rings have large, easy to read, distance marks printed on a bright fluorescent background for excellent visibility under all lighting conditions. The rings are automatically illuminated in low light conditions by a pair of white LED's.

A bright OLED display shows camera, lens, and Hand Unit set-up status. Focus settings can be displayed digitally for Cooke i-Lenses, or any lens which has been calibrated to the unit. Multiple focus marks can be displayed in a new focus display mode called "show". This mode gives an easy to interpret bargraph representation the distance set by the focus knob and any focus marks entered by the user.

An integrated hand grip and molded focus knob grip imparts comfortable operation. The zoom bargraph shows both the zoom lens position as well as user set end limits. End limits are set with Set/ Reset tactile switches arranged in three groups. An LED in each group indicates when limits have been set.



What's in the Box

  • Preston HU3 Hand Unit
  • 5 x Pre-Marked Focus Rings (A-E)
  • 2 x FM-50 Li Batteries
  • Battery Charger
  • Quick Release Grip
  • Plain, White Focus Ring


Key Highlights

  • Compatible with Preston MDR-3
  • Lens Mapping Capability
  • (5) Pre-Marked Focus Rings

Handle / Grip

Grip Appearance:

Lens Accessories

Marking Disk:
6 x Marking Rings - 5 x Pre-Marked (A-E), 1 x Plain, White

Mechanical & Electronic Controls

Focus Knob:
Handheld Wireless
Electronic Options:
Controls Include:
Focus Knob, Iris Slider
Preston MDR-3


11 in
11 in
15 in
3 lb
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