What the thread found

• Mounting a Preston MDR and Decimator II in close proximity on a camera sled can cause electromagnetic interference affecting HD video signal quality
• Focus motor operation and iris adjustments trigger signal dropouts when devices are mounted together
• Powering the MDR and Decimator from the same circuit increases interference
• Separating the power sources so each device draws from independent power supplies reduces interference significantly
• Relocating the Decimator to a different position such as the top of the camera body can eliminate interference problems

Depends on

• The solution was implemented on a specific RED camera rig configuration
• Minimal interference persisted even after changing power sources, indicating potential remaining coupling issues
• The underlying cause of interference may involve both power supply coupling and electromagnetic radiation from focus motor cables

Gear in this thread

MDR

Parts

Top Stage

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