What the thread found

• Radio frequency interference from a Canatrans transmitter at half-watt power causes Panatape units to lose accuracy when mounted in close proximity on the camera rig, regardless of frequency channel selection
• Moving the Canatrans transmitter to the back of the magazine eliminates the interference problem with Panatape
• The interference occurs even when the Canatrans is held near the Panatape without being mechanically attached to the same mounting plate
• Panatape units are known to have poor internal shielding and grounding design compared to more modern focus measurement systems
• Multiple Panatape units on the same show exhibited the same interference pattern with the Canatrans transmitter
• Mounting the Panatape brain on the matte box with sensor tubes on the dovetail plate does not prevent interference from a nearby Canatrans transmitter
• The manufacturer suggested keeping the Canatrans transmitter as far away as possible from the Panatape as a solution

Depends on

• The interference pattern was specific to this setup and may not occur with all Panatape units
• Some crew members experienced Panatape issues independent of Canatrans proximity, suggesting equipment-specific problems
• The Panatape interface connector with Preston HU3 hand unit may not be properly wired in some units
• This was reported in 2007 using older camera systems and focus measurement technology

Gear in this thread

Moduluscatalog, HU3

Parts

Dovetail Plate

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