The Portkeys BM5IV WR is a lightweight, rugged 5.5-inch Wide Color Gamut on-camera monitor with 2,000nits of brightness, HDMI/SDI video input and output ports, and wired/wireless camera control capabilities.
The Portkeys BM5IV WR is a robust 5.5-inch on-camera monitor ready for all your next creative adventures.

Powered by Portkeys’ latest CINENORM OS, this compact monitor is daylight-viewable, it can be operated via its touchscreen or the four user-assignable function buttons, it comes with a full suite of professional monitoring tools, and it has the capability to control your camera wired or wirelessly.


Key features:
- 5.5-inch, 10-bit (8+2 FRC) panel with a resolution of 1920 x 1080 and a 1000:1 contrast ratio.
- Daylight-viewable with a maximum brightness of 2,000nits.
- 1 x 4K60P HDMI input, 1 x 3G-SDI input, 1 x 4K60P HDMI output, 1 x 3G-SDI output with cross-conversion.
- Powered by CINENORM OS, which supports up to 7 custom pages.
- Professional monitoring tools: Waveform, Vectorscope, Peaking, ARRI False Color.
- 3D LUT monitoring and 3D LUT SDI output capabilities.
- Split-screen monitoring capabilities with multiple viewing modes, including PBP, PIP, and H2V.
- Factory color-calibrated, and the possibility for users to create a 3D calibration LUT with an X-Rite color probe.
- Wireless camera control of ARRI, RED, SONY, Nikon, Canon, Panasonic, and Blackmagic Design cameras.
- Wired camera control for Sony, Canon, Panasonic, BMD, and ZCAM E2.
- TILTA Nucleus N/M wireless follow focus wired control.
- Built-in Sony NP-F style battery plate.
- 4-pin and 2-pin LEMO 7.4V-24V power inputs for external power (D-Tap cable included).
- Lightweight and rugged aluminum housing: only 358g/12.62oz.


