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Preston Light Ranger 2-M Sensor

Code: PRE/6001-M

The LR2M incorporates an infrared distance measuring system with 16 distinct measurement zones, allowing the focus puller to visualize the depth of an entire scene without looking away from the monitor.

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The Light Ranger 2 is the first and only focus assist system designed for modern high-resolution cameras. The LR2M incorporates an infrared distance measuring system with 16 distinct measurement zones, allowing the focus puller to visualize the depth of an entire scene without looking away from the monitor. In this era of shooting the rehearsal, the LR2 provides focus pullers with innovative tools to accurately judge focus distance in even the toughest shooting scenarios.

Each of the 16 simultaneous distance measurements corresponds to a specific section of the image, and is represented with a green/white rectangle overlayed directly on top of the image at that location. The height of each bar corresponds to its distance in relation to the current knob setting of the HU4, giving immediate feedback to the focus puller for how to rotate the knob to bring any object into focus. White rectangles above the horizontal line on the monitor indicate the subject is further away than the current knob setting of the HU4, while rectangles below that line indicate a subject that is closer than the knob setting. Once the subject is within the depth of field (at the current HU4 knob setting), the rectangle(s) over that subject turns green.

The LR2M is perfect for crane, car-to-car, dolly, steadicam, and other shots where the camera is moving. It excels in low-light and any other situation where shallow depth-of-field makes critical focus a necessity.

Key Features

  • The LR2M sensor has a 20° field of view for mid to long focal length lenses
  • Companion sensor unit LR2W provides 50° field of view for short to mid-focal length lenses
  • Industry-first focus assist system that overlays graphics onto a focus puller’s monitor
  • Works with Video Interface Unit to display distance and depth information for up to 16 horizontal measurement zones across the frame
  • Allows for seamless transition between manual and autofocus modes
Specifications
Operating Range1’ to 40+’ (typically). Actual range depends on the size and reflectivity of the subject as well as the presence of smoke and/or fog either of which will diminish the usable range.
Horizontal angle of view20°
Vertical angle of view
Number of detection zones16
Detection zone width (each)1.25°
Emission wavelength905nm
IEC Eye SafetyClass 1 (Eyesafe)
Dimensions3.9in x 2.8in x 2.5in
Weight592g
Power10-32VDC through Serial Cable or the optional PN 4641 2-pin Lemo to D-Tap power cable. The optional power cable is highly recommended as voltage fluctuations at the camera can result in intermittent operation.