Postium Korea OBM-U428K Overview
Monitor your 4K or 8K studio or field production with the OBM-U428K 42" HDR 8K LCD Monitor from Postium Korea. With full input support for signals up to 8K60, the OBM-U428K offers 3840 x 2160 display resolution and a 178° viewing angle, with a brightness of 700 cd/m² and a 1000:1 contrast ratio. It features four 12G-SDI inputs, which can be used as single-link inputs for resolutions up to DCI 4K, and quad-link inputs for bringing in 8K. Four 12G-SDI loop outputs allow you to send up to four separate signals to other destinations. An HDMI 2.0 input and two SFP optical inputs provide additional options for bringing in video with embedded audio, and a 3.5mm line input offers analog stereo connectivity. A 3.5mm analog stereo output allows you to monitor sound via optional headphones. The monitor comes with its own power cord.
Features at a Glance
12G-SDI quad-link 8K / 12G-SDI single-link 4K
6G-SDI dual-link 2-S.I. 4K
3G-SDI quad-link square division 4K / 3G-SDI quad-link 2-Sample Interleave 4K
Dual SFP module Inputs (ST 2022-6 Support)
HDMI 2.0 input
HDR (high dynamic range) display supporting PQ (ST 2084), Hybrid Log Gamma, S-Log3
Wide color gamut ITU-R BT.709, SMPTE-C, EBU, Native, DCI-P3, ITU-R BT.2020
Internal color processing 72-bit (24-bit x 3) + Native 33x33x33 30-bit 3D-LUT
1,073 billion colors
Gamut error
Black stretch
Camera Log conversion
Custom 3D LUT file import through USB
Gamma Selection (1.0 to 3.0)
SDR EOTF - BT.1886 (Gamma 2.4)
Color temperature (3200K, 5500K, 6500K, 9300K, USER 1/2/3, D-CINEMA)
Monitor control via Ethernet, RS-422
Image division and link order autodetection
Waveform, vectorscope
HDR waveform
Various markers (EBU, 4:3, 16:9, 1.85:1, 2.35:1, variable custom)
Zero scan
Timecode display
De-embedded 8-16 channel audio level meter
Internal pattern display for color test (black, 100% white, color bar)
Remote control via GPI (RJ-45) port
False color: Zebra, color pattern, ARRI
Easy firmware update by USB
System data copy
H/V delay
Blue/mono only
Focus assist
3-color tally lamp
HDR auto setting
Aspect
Freeze