Fujinon ERD-20A-A02
Description
The Fujinon ERD-20A-A02 is a professional zoom-rate demand controller designed for Fujinon ENG, EFP, and broadcast lenses equipped with compatible servo zoom systems.
The ERD-20A-A02 provides smooth, precise control over lens zoom speed and direction, allowing camera operators to perform controlled zooms directly from the camera operating position. It is particularly useful for live television, sports, news, events, studio production, and other broadcast applications where consistent and repeatable zoom control is essential.
Fujifilm lists the ERD-20A-A02 as the standard Zoom Rate Demand Unit for Fujinon portable-lens control systems such as the SS-13B Full-Servo Control Kit and MS-13B Semi-Servo Control Kit.
Key Features
- Professional Fujinon servo zoom controller
- Zoom-rate demand unit
- Designed for compatible Fujinon broadcast lenses
- Smooth variable-speed zoom control
- Adjustable zoom speed
- Forward and reverse zoom operation
- Designed for ENG/EFP and live-production environments
- Compatible with Fujinon standard servo lens systems
- 12-pin lens control connection
- Compatible with Fujinon mounting clamps
- Suitable for handheld and studio broadcast configurations
- Useful for sports, news, events, and live production
Precision Zoom Control
The ERD-20A-A02 allows the operator to control the speed and direction of a compatible Fujinon lens’s motorized zoom.
Instead of operating the zoom rocker directly on the lens, the demand can be positioned where the operator can comfortably access it while shooting.
This provides greater control during:
- Live broadcasts
- Sports coverage
- Concerts
- Corporate events
- News gathering
- Studio production
- Stage performances
- Documentary production
The controller is specifically designed for applications where smooth, predictable zoom movements are important.
Fujinon Broadcast Lens Compatibility
The ERD-20A-A02 is designed for compatible Fujinon broadcast lenses with servo zoom capability.
Fujifilm’s current accessory documentation identifies the ERD-20A-A02 as the standard zoom-rate demand for the SS-13B and MS-13B lens-control configurations.
Full-Servo Configuration
In Fujifilm’s SS-13B configuration, the ERD-20A-A02 works together with:
- Fujinon compatible broadcast lens
- EPD-21A-A02 Focus Position Demand
- ERD-20A-A02 Zoom Rate Demand
- MCA-37 Mounting Clamp
This configuration provides servo focus and servo zoom control.
Semi-Servo Configuration
The ERD-20A-A02 can also be used in Fujifilm’s MS-13B configuration with:
- Manual focus module
- Focus grip
- Flexible cable
- ERD-20A-A02 Zoom Rate Demand
- Compatible mounting clamp
This provides manual focus with servo zoom.
Smooth Variable-Speed Zooming
The primary purpose of the ERD-20A-A02 is precise zoom-rate control.
The operator can smoothly transition between slower cinematic-style zooms and faster reframing movements depending on the production requirements.
This makes the unit particularly useful for broadcast camera operators who need to maintain a consistent zoom speed during live coverage.
Professional Broadcast Applications
Sports Production
Use the ERD-20A-A02 for controlled zooms when following athletes and action from a fixed camera position.
Live Events
Ideal for concerts, conferences, ceremonies, stage productions, and other events where camera operators need smooth live zoom control.
News and ENG
The controller is well suited for electronic news gathering and field production with compatible Fujinon ENG lenses.
Studio Production
Use it as part of a Fujinon servo lens system for studio and multi-camera productions.
Corporate Video
Useful for interviews, presentations, conferences, and multi-camera corporate productions.
Mounting
The ERD-20A-A02 can be mounted to compatible Fujinon lens systems using the appropriate mounting clamp.
Fujifilm identifies the MCA-37 as the mounting clamp used with the ERD-20A-A02 in its current SS-13B and MS-13B configurations.
Some used ERD-20A-A02 units are also sold with an MCA-7 mounting clamp, so the exact clamp supplied with a rental should be specified in the listing.
Important Compatibility Note
The ERD-20A-A02 is not a universal zoom controller.
It is intended for compatible Fujinon broadcast lens servo systems. Customers should verify the lens model and connector configuration before ordering.
For newer Fujinon DIGIPOWER lens systems, Fujifilm specifies the newer ERD-40A-D01 Digital Zoom Rate Demand Unit rather than the ERD-20A-A02.





