Skaarhoj ETH-B4 Link

ETH-B4 Link turns Ethernet commands into control of B4-mount lenses for precise remote iris adjustment. It features a Hirose 12-pin connector, a camera number selector, a two-colour tally LED with relay output and PoE power.

SKAARHOJ ETH-B4 Link is a compact IP-based interface that brings broadcast B4 lens control into modern networked production workflows. It converts Ethernet commands into precise lens control signals, so you can adjust the iris of cameras with B4 lenses remotely. It is at home in studios, OB vans and multi-camera setups where accurate exposure control is essential.

B4 lens iris over the network

Precise remote iris control of broadcast B4 lenses over IP, with tally signalling right at the camera.

B4 lensesHirose 12-pinTally LED + relayPoE poweredCompact

Precise exposure from afar

ETH-B4 Link connects directly to the lens via its Hirose 12-pin connector and turns network commands into iris control. The operator keeps the exposure of every camera in check from one place.

Fast multi-camera deployment

The built-in camera number selector makes ID and IP setup easy. In a multi-camera rig each unit is ready in moments.

Tally right at the camera

An integrated two-colour LED and relay output clearly signal on-air and preview status. Tally fits neatly into multi-camera workflows.

Lens control in IP production

ETH-B4 Link links proven broadcast B4 lenses with network control, letting you manage exposure and tally for the whole setup over standard Ethernet.

Hirose 12-pin

Direct connection to professional broadcast cameras and lenses.

100 Mbit/s Ethernet

Control commands over a standard network.

Dual power

PoE (IEEE 802.3af) or a 12 V DC input, minimal cabling.

Compact and light

Just 106 g for easy mounting even in tight spaces.