Portkeys BM5 IV
Portkeys BM5IV WR 5.5" SDI/HDMI Field Monitor for Cameras and Cinema Shoots. Optional control cable not included.
- 5.5-inch 10-bit panel (8+2 FRC) with a resolution of 1920 x 1080 and a contrast ratio of 1000:1.
- Daylight viewable with a maximum brightness of 2,000 nits.
- 1 x 4K60P HDMI input, 1 x 3G-SDI input, 1 x 4K60P HDMI output, 1 x 3G-SDI output with cross conversion.
- Based on the CINENORM operating system, supporting up to 7 custom pages.
- Professional monitoring tools: waveform, vectorscope, peaking, ARRI false color.
- 3D LUT monitoring and 3D SDI LUT output capability.
- Split-screen monitoring functionality with multiple modes Viewing options, including PBP, PIP, and H2V.
- Factory color calibration and the ability for users to create a 3D calibration LUT with an X-Rite color probe.
- Wireless 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 control.
- Integrated Sony NP-F style battery plate.
- 7.4V-24V 4-pin and 2-pin LEMO power inputs for external power (D-Tap cable included).
- Lightweight and rugged aluminum housing: only 358g/12.62oz.
2000-nit Full HD Daylight Viewable Screen
Whether you're shooting indoors or outdoors, the Portkeys BM5IV WR is daylight viewable. Daylight, with a high brightness of 2,000 nits.
The 10-bit panel (8+2 FRC) ensures more accurate color reproduction, with a high level of detail and no color banding.
This 5.5-inch monitor has a Full HD 1920 x 1080 resolution, a wide 178° viewing angle, and a contrast ratio of 1000:1.
Use the PORTKEYS BM5IV 5.5" HDMI/SDI Touchscreen Monitor to monitor your image and focus accurately, no matter if you're shooting on location or in the studio.
This ultrabright 2000 cd/m² onboard monitor features a wide color gamut, a durable aluminum build, and both HDMI and 3G-SDI video inputs and outputs.
It supports HDMI/SDI signal conversion and can output 3D LUTs via its SDI output port. Wired control is available for select RED, Sony, Blackmagic Design, Canon, Panasonic, and Z CAM cameras, as well as the Tilta Nucleus-M wireless lens motors.
Firmware Update V4
- In the color category, the update adds a Before LUT Detection option in the Log Stops feature, an on-screen display of LUT files, separate switches for color calibration data, and a color bar to the Log Stops UI.
- Additional control updates include an image flip function on the Function menu, dynamic range control in settings, an image settings category, another signal source input to the monitoring category, an F-key preset page, brightness and fan adjustment, input power selection, and transparency options for the guide box.
- Professional-grade monitoring tools also received an upgrade with adjustable length and thickness options, new color options, a false color preset, edits to the Anamorphic image configurations, and an RGB histogram overlay.
- Control is expanded for Sony cameras with the update. Shutter angle and shutter speed switches can be performed with the Sony FX3, FX30, and FX2. Touch Focus Frame and Touch Focus Tracking Frame can be displayed from Sony cameras connected to the monitor via USB-C. USB-C control can be facilitated from the monitor for the Sony a7V camera. White balance and color temperature control can be adjusted for all compatible Sony cameras.
- Other camera brands have also been given a boost. Automatic connection can be facilitated with RED DSMC2 cameras. Canon EOS R5 II and R6 III cameras can be controlled via USB-C. The Panasonic GH7 has been added to the list of wired camera control compatibility.
Flexible Color Controls
The BM5IV uses three color gamuts to properly calibrate your image: 100% REC.709, 85% P3-DCI, and 85% P3-D65.
You can manually select your Log mode, toggle Log false color, and select your own custom false color from 77 colors and 15 different segments.
The monitor is factory calibrated with the option for users to create a 3D calibration LUT and an X-Rite color probe.
CINEFORM OS
CINEFORM OS powers the monitor and allows you to configure settings to suit your workflow.
Import two sets of custom color calibration files, create seven custom control pages, and save it all to the included micro-USB drive for import to another monitor and streamline your workflow.
Dual-Screen Monitoring
When taking in multiple camera signals via the HDMI and SDI input ports, you can select different dual-screen monitoring configurations to view both images simultaneously.
Choose between horizontal to vertical crop, picture-in-picture, dual vertical, dual horizontal, and vertical/horizontal split views.
Connectivity
This upgraded BM5IV monitor features the same HDMI input, SDI input, and SDI output ports found on the previous model with the addition of an HDMI output, allowing you to convert signals with ease.
The HDMI ports can support up to 4K60 video, while the SDI ports can support up to 1080p60 video.
A USB-A port helps facilitate firmware updates and uploads 3D LUTs to the monitor.
Wired Camera & Motor Control
A micro-USB remote connection facilitates camera control with select camera models from RED, Sony, Blackmagic Design, Canon, Panasonic, and Z CAM using separately available cables.
The BM5IV can also be used in tandem with your Tilta Nucleus N/M wireless focus system using its UART port for calibration and limit setting.
Multiple Power Options
Use the 4-pin interface and included D-Tap cable to connect compatible power sources directly to the monitor.
A built-in NP-F battery plate supports compatible batteries.

- 5.5-inch 10-bit panel (8+2 FRC) with a resolution of 1920 x 1080 and a contrast ratio of 1000:1.
- Daylight viewable with a maximum brightness of 2,000 nits.
- 1 x 4K60P HDMI input, 1 x 3G-SDI input, 1 x 4K60P HDMI output, 1 x 3G-SDI output with cross conversion.
- Based on the CINENORM operating system, supporting up to 7 custom pages.
- Professional monitoring tools: waveform, vectorscope, peaking, ARRI false color.
- 3D LUT monitoring and 3D SDI LUT output capability.
- Split-screen monitoring functionality with multiple modes Viewing options, including PBP, PIP, and H2V.
- Factory color calibration and the ability for users to create a 3D calibration LUT with an X-Rite color probe.
- Wireless 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 control.
- Integrated Sony NP-F style battery plate.
- 7.4V-24V 4-pin and 2-pin LEMO power inputs for external power (D-Tap cable included).
- Lightweight and rugged aluminum housing: only 358g/12.62oz.
2000-nit Full HD Daylight Viewable Screen
Whether you're shooting indoors or outdoors, the Portkeys BM5IV WR is daylight viewable. Daylight, with a high brightness of 2,000 nits.
The 10-bit panel (8+2 FRC) ensures more accurate color reproduction, with a high level of detail and no color banding.
This 5.5-inch monitor has a Full HD 1920 x 1080 resolution, a wide 178° viewing angle, and a contrast ratio of 1000:1.
Use the PORTKEYS BM5IV 5.5" HDMI/SDI Touchscreen Monitor to monitor your image and focus accurately, no matter if you're shooting on location or in the studio.
This ultrabright 2000 cd/m² onboard monitor features a wide color gamut, a durable aluminum build, and both HDMI and 3G-SDI video inputs and outputs.
It supports HDMI/SDI signal conversion and can output 3D LUTs via its SDI output port. Wired control is available for select RED, Sony, Blackmagic Design, Canon, Panasonic, and Z CAM cameras, as well as the Tilta Nucleus-M wireless lens motors.
Firmware Update V4
- In the color category, the update adds a Before LUT Detection option in the Log Stops feature, an on-screen display of LUT files, separate switches for color calibration data, and a color bar to the Log Stops UI.
- Additional control updates include an image flip function on the Function menu, dynamic range control in settings, an image settings category, another signal source input to the monitoring category, an F-key preset page, brightness and fan adjustment, input power selection, and transparency options for the guide box.
- Professional-grade monitoring tools also received an upgrade with adjustable length and thickness options, new color options, a false color preset, edits to the Anamorphic image configurations, and an RGB histogram overlay.
- Control is expanded for Sony cameras with the update. Shutter angle and shutter speed switches can be performed with the Sony FX3, FX30, and FX2. Touch Focus Frame and Touch Focus Tracking Frame can be displayed from Sony cameras connected to the monitor via USB-C. USB-C control can be facilitated from the monitor for the Sony a7V camera. White balance and color temperature control can be adjusted for all compatible Sony cameras.
- Other camera brands have also been given a boost. Automatic connection can be facilitated with RED DSMC2 cameras. Canon EOS R5 II and R6 III cameras can be controlled via USB-C. The Panasonic GH7 has been added to the list of wired camera control compatibility.
Flexible Color Controls
The BM5IV uses three color gamuts to properly calibrate your image: 100% REC.709, 85% P3-DCI, and 85% P3-D65.
You can manually select your Log mode, toggle Log false color, and select your own custom false color from 77 colors and 15 different segments.
The monitor is factory calibrated with the option for users to create a 3D calibration LUT and an X-Rite color probe.
CINEFORM OS
CINEFORM OS powers the monitor and allows you to configure settings to suit your workflow.
Import two sets of custom color calibration files, create seven custom control pages, and save it all to the included micro-USB drive for import to another monitor and streamline your workflow.
Dual-Screen Monitoring
When taking in multiple camera signals via the HDMI and SDI input ports, you can select different dual-screen monitoring configurations to view both images simultaneously.
Choose between horizontal to vertical crop, picture-in-picture, dual vertical, dual horizontal, and vertical/horizontal split views.
Connectivity
This upgraded BM5IV monitor features the same HDMI input, SDI input, and SDI output ports found on the previous model with the addition of an HDMI output, allowing you to convert signals with ease.
The HDMI ports can support up to 4K60 video, while the SDI ports can support up to 1080p60 video.
A USB-A port helps facilitate firmware updates and uploads 3D LUTs to the monitor.
Wired Camera & Motor Control
A micro-USB remote connection facilitates camera control with select camera models from RED, Sony, Blackmagic Design, Canon, Panasonic, and Z CAM using separately available cables.
The BM5IV can also be used in tandem with your Tilta Nucleus N/M wireless focus system using its UART port for calibration and limit setting.
Multiple Power Options
Use the 4-pin interface and included D-Tap cable to connect compatible power sources directly to the monitor.
A built-in NP-F battery plate supports compatible batteries.

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