Daily $

The Panasonic BT-LH1850 18.5″ High-Performance HD/SD LCD Widescreen Monitor is a 1366 x 768 production monitor with highly-useful features, a comprehensive set of connections, and superior quality output. The panel is eco-friendly, with a mercury-free LED backlight drawing only 22W of power, less than half that of the previous LH model.

By SD SDI or video input, the LH1850 can display closed captions with support for both closed caption standards (EIA/CEA-708 HD-SDI and EIA/CEA-608 SD-SDI). It can display up to eight windows simultaneously. A vectorscope function can display all lines of an SDI input signal (Y/R/G/B). A pixel-to-pixel function can display input video without resizing it. A still frame function can freeze a frame and display it as a sub-screen. A time code display shows the value of the VITC, LTC or UB time code. And a simple cross hatch overlay can be displayed to check the tilt of a camera.

A range of markers can be displayed in both 16:9 and 4:3 aspect ratios, including safe area, center, and aspect markers (aspect = 4:3, 13:9, 14:9, CNSCO 2.39, CNSCO 2.35, 2:1, and VISTA in 16:9 mode). For audio monitoring, a color audio level meter shows the input level of embedded audio. The LH1850 also features a waveform monitor for R/G/B signals and a 3D look-up table that produces authentic color hues and smooth gradation along with quick-response motion images.


A 3D look-up-table offers 6-pole color correction and includes a look-up table for each signal level, and applies 10-bit image processing to each RGB color to balance the six coordinate axes of the three primary RGB colors and their complementary CMY colors, resolving color drifting at low light levels and keeping colors vividly natural. It also delivers an array of additional features necessary in demanding broadcast and production environments, including setting for gradation, and selectable color temperature of 9300K / 6500K / 5600K or 3000K to 9300K.


HD/SD SDI and HDMI outputs allow any camera source to be viewed. Two SDI inputs support embedded audio and feature an automatic HD/SD switching function. An HD Link facilitates connection to a wide range of HDMI sources such as Blu-ray / DVD players. Also available is a single link DVI-I input that supports both digital and analog signals. An RS-485 serial remote takes on up to 32 monitor connections in a loop-through configuration. Each monitor can be designated and controlled by a distinct ID number. TSL commands allow 8 alphanumeric character text display and tally indication. The monitor also supports unique RS-232C-equivalent Panasonic commands.

Overall Features:

Closed captions
Camera tilt
Freeze frame
Audio level meter
Time code
Mono mode
RS-485 IMD remote
Worldwide 59.94 Hz / 50Hz compatibility
Two-channel analog audio (pin jacks x2)
Audio monitoring via built-in speakers and headphone output
Markers and Blue-only display
H/V delay display
Various color adjustments
Customizable function keys
Calibration hardware interface for chroma and luma
GPI remote control terminal
Cine-gamma Film-Rec compensation function
Standard tilt stand, tally lamps, and Key Lock function
Standard screw holes for mounting
Quiet operation (no cooling fan)
Integrated power supply
Operates on AC or DC power — power input switchable between AC and 4-pin XLR DC per a door that slides up and down between the two
VESA mount support (100mm spacing pattern between mounting holes)

Technical Specs

Panel Size: Effective display - 18.5" (47 cm)
Aspect Ratio: 16:9
Resolution: 1366 x 768 (WXGA)
Display Colors: Approx. 16,770,000 colors
View Angle: 170° horizontal, 160° vertical (contrast > 10:1)
Video Input: 1 input, BNC x1
Video Output: 1 line, BNC x1 (through-out)
Input Signal Level: 0.31 Vrms


SDI x2:
SMPTE274/296M/259M-C/ITU-R BT.656-4 standard
Embedded audio supported
HD SDI: SMPTE299M standard, 48 kHz, synchronous, 8 CH
SD SDI: SMPTE272M standard, 48 kHz, synchronous, 4 CH

HDMI x1:
1 line
Type A terminal
HDCP supported
Embedded audio supported
VIERA link not supported

DVI-I x1:
Single link
Stereo audio x2
Pin jack

GPI x1:
9 pin D-sub
1 line

RS-232C x1:
9 pin D-sub
1 line

RS-485 x1:
1 line

Headphones x1:
Stereo mini jack M3
32 Ω
Level adjustable


SDI x1:
1 line, switched out

RS-485 x1:
1 line

Monaural 0.5 W

Tally (display):
Red , green, amber

Power Supply:
AC 100-240 V, 50/60 Hz/DC 12V 4-pin XLR (11-17V)
Power input switchable between AC and XLR DC per a door that slides up and down between the two

Power Consumption: AC 0.30 A - 0.15 A/DC 1.8 A
Operating Temperature:1 to 95°F (5 to 35°C)
Operating Humidity: 20 to 80% (no condensation)
Storage Temperature: -4 to 140°F (-20 to 60°C)

Including tilt stand: 18.85 x 15.35 x 9.45" (47.9 x 39 x 24 cm)
Not including tilt stand: 18.85 x 13.3 x 3" (47.9 x 33.9 x 7.65 cm)

Including tilt stand: 15.43 lbs (7 kg)
Not including tilt stand: 12.35 lbs (5.6 kg)

Our Kit

Our rental kit includes:

1 x Panasonic BT-LH1850 18.5" LCD Widescreen Monitor
1 x Matthews Monitor Mount for Baby (5/8") Spigot
1 x Monitor Plexi Glass
1 x Universal AC Cable
2 x 25' HD-SDI BNC

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