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2006Cameras (Film/Video/HD) forum

Arri D-20 HD camera performance, power consumption, and steadicam operation characteristics

20 years old. Gear and prices may have changed since.

What the thread found

  • The D-20 camera body consumes approximately 50 watts maximum at 24 volts, while the Flashmag consumes 20 watts during recording and playback or 30 watts during erasing, making it significantly more power-efficient than competing cameras of that era.
  • The camera features a full-frame Super 35mm CMOS sensor identical to the one used in the Arri Scanner, which enables shooting true anamorphic HD and provides overscan capability to preview subjects entering the frame.
  • The D-20 uses passive convection cooling through seven chimneys and Peltier junctions rather than active cooling fans, contributing to its low power draw and operational simplicity.
  • The camera includes an optical viewfinder with a real ground glass that displays more than the sensor's active area, addressing a significant limitation of purely electronic monitoring.
  • The D-20 outputs both standard definition video and HD-SDI, with the standard definition output being notably cleaner than competitor models like the Viper.
  • Tethering the camera via HD-SDI cable to a steadicam operator's suit is viable, with the cable routed from a connection point on the operator's back over the shoulder to the camera body with minimal impact on rig balance.
  • The camera weighs approximately 3 pounds more than a Viper and is comparable in weight to an Arricam LT when mounted with a 50mm lens, mattebox, and lens motors in low-mode configuration.
  • The camera can operate at ASA 400 native sensitivity with the ability to step down to ASA 50 in one-third stop increments, delivering cleaner output at matched sensitivity compared to the Viper.
  • The Flashmag can be separated from the camera body and powered independently, allowing operators to mount it separately on steadicam sleds with SDI cable connections.

Depends on

  • This discussion references a camera in pre-production or early availability, so production specifications may have changed before final release.
  • Testing was conducted by steadicam operators in specific production environments and may not reflect all use cases.
  • Sensitivity and noise comparisons to the Viper were made at matched ASA settings but represent subjective assessments from limited field testing.
  • The discussion indicates fiber optic tethering systems were not yet ready for deployment, limiting truly untethered operation options at that time.
  • One participant stated the D-20 weighs 3 pounds more than a Viper, contradicting earlier claims about comparative weight advantages.

Parts

Low Mode

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