Portkeys BM5IV WR 5.5-inch Wide Color Gamut On-camera Monitor

Portkeys PK-BM5-IV-WR (PK/BM5-IV-WR, PK/BM5/IV/WR, PKBM5IVWR, PK BM5 IV WR) BM5IV WR 5.5-inch Wide Color Gamut On-camera Monitor

Portkeys BM5IV WR – 5.5" Ultra-Bright On-Camera Monitor with Wired & Wireless Camera Control

The Portkeys BM5IV WR is a robust 5.5-inch on-camera monitor built for professionals who demand precision, durability, and versatility. Powered by the latest CINENORM OS, it offers both wired and wireless camera control, a daylight-viewable touchscreen, and an extensive set of monitoring tools—all in a rugged, compact design.

Built to Withstand the Demands of the Field

Constructed entirely from rugged aluminum with a toughened front glass, the BM5IV WR is designed for harsh shooting environments. Thin bezels provide a sleek profile, and at just 358g (12.62oz) without battery, it remains lightweight and easy to mount on any rig.

Vibrant, Accurate Display

The 2,000-nit ultra-bright display is clearly visible even in direct sunlight, while the 10-bit (8+2 FRC) panel ensures smooth gradations, vivid colors, and no banding. The 1920 x 1080 Full HD resolution, 178° viewing angle, and 1000:1 contrast ratio deliver rich visuals for precise monitoring. Each unit is factory-calibrated, and users can load custom calibration LUTs via USB with an X-Rite color probe if needed.

Professional-Grade Monitoring Tools

• The BM5IV WR is packed with high-end monitoring features, including:
• Exposure tools: Zebra, False Color, ARRI False Color, LOG False Color, User-defined modes, full-screen waveform, histogram
• Image analysis: Luma/RGB waveform, vectorscope, histograms, audio meters
• Focus assist: Advanced peaking algorithm, edge enhance, grayscale/color peaking, zoom-in focus
• Color tools: 3D LUT monitoring/output via SDI, HDR (HLG) mode, USB LUT loading
• Framing tools: Guides, grids, crosshair, check field, rectangle crop, aspect ratio markers
• Anamorphic de-squeeze: Standard (1.33x, 1.5x, 2.0x) and custom ratios (0.25x to 4.0x)
• Image Capture & Overlay: Save a snapshot from HDMI or SDI input and overlay it with adjustable opacity

Flexible I/O and Video Processing

The monitor includes:

• 2 x HDMI input/output (up to 4K DCI 60p)
• 1 x 3G-SDI input
• 1 x 3G-SDI output (clean feed or with LUT/peaking)

It supports HDMI↔SDI cross-conversion and dual video signal monitoring with multiple viewing modes:

• Picture-in-Picture
• Dual horizontal/vertical
• Left horizontal & right vertical
• Left vertical & right horizontal
• Perfect for multi-camera shoots or simultaneous framing in 16:9 and 9:16 for social media content.
• Camera Control Capabilities

More than just a monitor, the BM5IV WR provides camera control for over 80 models from 8 major brands, including:

RED (DSMC2, KOMODO, KOMODO-X, V-RAPTOR, V-RAPTOR XL) – RED-approved; wireless control with full camera settings and touch-to-focus

ARRI Alexa Mini – Wireless control

Nikon Z8/Z9 – Wireless control

This makes it an ideal solution for cinematographers, DPs, directors, focus pullers, and solo creators who need powerful control and high-end monitoring in a single device.

• Screen size: 5.5"
• Brightness: 2000 nits
• Color depth: 10-bit (8+2 FRC)
• Material: Aluminum alloy
• Signal conversion: HDMI/SDI conversion
• Camera control interface: Remote
• Signal input: 3G SDI, 4K60p HDMI
• Signal output: 3G SDI, 4K60p HDMI
• Operating system: CINENORM OS

In The Box

• BM5IV WR 5.5-inch Wide Color Gamut On-camera Monitor
• 2.4 GHz Antenna
• Micro-USB Flash Drive
• D-Tap to 4-Pin Aviation Power Cable
• Storage Case