OSEE showed their new 21.5″ tri-input monitor at IBC 2025. The monitor is capable of receiving three inputs from either SDI or HDMI and displaying them simultaneously on the screen. It also features one output with HDMI and SDI. This is very handy for using a wireless system to send to a client monitor.
The monitor is 10-bit full HD but can handle 4K single via HDMI, which will be downconverted. The SDI signal is 3G/SDI. This is a significant advantage over the earlier version by OSSE, such as the MEGAMON 15, which lacked 4K downconversion. This is a welcome upgrade.
OSEE Mega 22S4 21.5″ Specifications
| Brightness | 1500 Nits |
| Display Direction | Horizontal/Vertical Multiview Modes: Single, PBP. Triple, Quad View |
| Screen Specs | 21.5 inch. Rec.709, IPS 178°, 10 Bit, 1920*1080 |
| Color Calibration | Self-Color Calibration |
| Contrast | 1100:1 |
| Control | Joy Stick + Buttons |
| Input | 3* 4K-HDMI, 3* 3G-SDI |
| Output | 1* 3G-SDI, 1* HDMI |
| Luts | Built-In & Custom 3D LUT |
| Tools | Focus Peaking, False Color & Image Tools |
| Power | DC, AC, Battery |
The monitor can be calibrated without the use of a PC by using an X-Rite Color Checker display and calibration probe, which attaches via USB. This is a great feature.
Firmware updates are installed via the front USB input, and a headphone jack is avaiable next to it.
OSEE did a nice job adding a VESA mount that can be used in both vertical and horizontal modes. It disconnects and locks quickly to reorient the monitor.
Cheese plates are available to add devices such as wireless transmitters that can connect via the SDI or HDMI output ports.
Three HDMI and SDI ports are available. You can switch between the three inputs or have three up at the same time with cropping.
OSEE includes both V-Mount and Gold Mount battery plates for easy switching, depending on the batteries you want to use. I like this a lot, as I do have both types, and it’s great to have options.
Instead of including a case, the monitor ships with a foam insert that is compatible with a Pelican 1600.
The Mega 22S4 retails for €1599 and will be available in the fourth quarter of 2025.
