Marshall V-LCD171MD monitor provides excellent features in a popular 17-inch size. Straight-forward design with the most-used features built-in including waveform and audio bar overlays, loud speakers, programmable function buttons, three-color tally lights and tilting mount design for easy viewing. Great for use in news vans, satellite trucks and central equipment rooms. The V-LCD171MD base unit comes with no preinstalled module. Full HD 1920 x 1080 display HDMI input / output standard Modular design. Allows addition of 3GSDI input Waveform monitor at the push of a button Audio meter bars overlay Built-in speakers and headphone jack Rugged 4-pin XLR power connector Three color (Red, Yellow, Green) LED tally lightsThe V-LCD171MD-3G option includes the base unit with a preinstalled MD-3GE module providing an additional 3G/HD/SD-SDI input with loop-through. DSLR Ratio Adjustment Marshall's new DSLR RATIO ADJUSTMENT feature allows users to scale video that does not completely fill the monitor's screen when connected via HDMI in "Record" mode on certain Canon DSLRs. This new feature allows the user to scale their DSLR video output, fill the screen and eliminate black pillar bars with a variety of options to choose from. The user has the option of choosing between NORMAL, 3:2, 16:9 and FULL SCREEN. The DSLR RATIO ADJUSTMENT feature can be programmed to one of the front panel's four-button presets for