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Image Measurement System - ZGC Qinematiq Smart Ranger Set


Qinematiq Smart Ranger Set

Part #: SR-ST-1

Price:  $6,500





Simply smart

  • Effortless distance measurement between subject and camera film plane
  • Measurement system consists of an anchor unit and a tag
  • Distance measurement from 0.4m to 40m, up to 2 tags
  • Fully automated, permanent measurement runs without manual adjustment

 

 



 

SMART RANGER measures the distance between an anchor unit (display unit) and a reflector (tag, transponder); the resulting distance values are made available to the focus puller. The tag is fixed to a subject or positioned in the working area, while the display unit is mounted to the camera. Distance measurement between subject and film plane is performed automatically and independently.

Distance measurement has never been easier: Place the display unit and tag as desired. Turn on the system. View the measurement data on the display. That’s it.


Technical Specifications:


  • The distance measurement device consists of a sender and up to 2 auto­nomous tags
  • Measurement range: 0,4 to 40m
  • Measurement accuracy: +- 12 cm
  • Sampling rate: 12 measurements per second
  • Serial interface for connecting a lens control system
  • Easily readable display
  • Display has a  1/4“ UNC thread
  • Supply voltage for display unit: 9V – 35V
  • Battery runtime of tag: 12h (transponder can be switched on/off)
  • Transponder charger interface: 5V Micro USB
  • Display dimensions: 104,5x 97 x 23 mm, 255g
  • Transponder dimensions: 72 x 71 x 15 mm, 90g



SMART RANGER – the key features:


  • Measurement system consists of a DPU-1 display unit and the SMART RANGER tag SRT-1
  • The measurement range between display unit and transponder is 0.4m to 40m
  • The measurement accuracy is +/-12cm (applies to the whole measurement range of 0.4m to 40m)
  • Distance measurement between display unit and 2 tags is possible
  • Tag is continually tracked
  • Every 80ms, a new measurement value is issued
  • Measuring is possible inside or outside of buildings
  • Small and lightweight tag can be worn underneath clothing
  • Tag has a rechargeable battery; battery life is 12h
  • Display unit can be fixed to the film camera
  • Easily readable display​
  • Serial interface for the connection with a lens control system
  • Distance data can be displayed via lens control system

Assembling the system could not be easier:

The DPU-1 display unit is fixed to the camera itself, or next to it. The SRT-1 tag is placed at the desired position in space or fixed to a subject. The display unit is mounted precisely at film plane level; if this is impossible, a corresponding offset value can be entered. The display unit is powered by the film camera battery. After both display unit and tag have been switched on, the distance is shown immediately and automatically. That’s it.

It is no longer necessary to manually adjust the measurement system towards a subject. If the camera or subject is moving, all the corresponding distance values are permanently updated and instantly available.

For distances from 0.4m to 40m, automatic measurement is possible. The distances are displayed on a big display; all this makes the – often difficult – handling of focus adjustments for a moving camera and/or moving subject much, much easier.

It is also possible to switch between two tags. The focus puller maintains an overview of all the distances on the film set, in particular when dealing with moving subjects or a moving camera. Between the two distance values, a ramp function of time can be used.


 


Using SMART RANGER has one significant advantage: It is no longer necessary to manually adjust the measurement system. The distance between display unit and tag is measured automatically and permanently. The marking or measuring of reference markers becomes redundant, and this saves time as well as money. SMART RANGER serves as a distance reference system, in particular for sequences involving movement. The display unit is very small and lightweight and can also be fixed to, or next to, small film cameras.


The following examples are typical use cases:


  • The tags are placed outside of the camera’s field-of-view. The distance to these reference markers is permanently measured.
  • The camera is placed on a crane and moves through space, the distance to the subject is difficult to assess. SMART RANGER is a helpful tool in all cases where distance measurement is difficult or distances change permanently.
  • Steadicam or gimbal use: The actor wears the transponder underneath their clothing. The camera follows the actor. With SMART RANGER, the distance data is permanently available.
  • An actor moves around the corner of a building. Before the subject comes into view, the distance is already available, and the focus puller can focus on it.
  • The film camera is moved before shooting starts, reference markers are often changing and constant re-measuring is required. Thanks to SMART RANGER, all reference markers are updated accordingly.
  • The camera is on a pick-up car, the subject is another car.
  • A camera on a cable pull moves towards a moving subject.
  • Subjects on one ship are filmed from another ship.
  • And many more.

Connecting a lens contol system


The display unit has a serial interface that can be used for connecting a lens control system (LCS). This makes it possible to display the distance values on the LCS hand unit. This option is available for all lens control systems supporting the ultrasound measurement systems cinetape or Arri UDM, for example systems by Arri, cmotion, Preston or Chrosziel.


Robust distance measurement


Display unit and tag are connected via a highly robust radio connection. With SMART RANGER, measurements can be performed inside and outside of buildings. The transponder can be attached to the body. The transmission power of the system is many times smaller than those of a mobile phone, wireless lens control system or wireless video link. SMART RANGER works in parallel to these radio systems. They are not impacted or disturbed, and do in turn neither impact nor disturb the distance measurement.

SMART RANGER uses a special technology that results in a low susceptibility to failure. However, as with all wireless measurement systems, there are some limitations that need to be considered: SMART RANGER cannot perform measurement through electrically conductive bodies (metal, water, etc.). Therefore measuring through human bodies – which are also conductive – is not possible: the radio connection is obscured, the distance measurement is disturbed, and the distance values are distorted, i.e. increased, since the radio wave has to move around the body.


 






  Code Description Price  

Featured Product
SR-ST-1Smart Ranger Set $6,500

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