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ViewSonic LS751HD Projector

    ViewSonic LS751HD Projector

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    5,000 ANSI Lumens 1080p Laser Installation Projector

    • 2nd generation laser phosphor technology with up to 30,000 hours lifespan
    • 5,000 ANSI Lumens offering bright images in any environment
    • Up to 300" ultra large screen with lower cost-per-inch
    • Installation flexibility: V lens shift, 1.6x optical zoom, H/V keystone
    • Versatile application: 360° projection, portrait mode
    • HDMI 2.0b for accessibility of 4K contents with HDR/HLG support


    The Luminous Superior series is ViewSonic’s lamp-free high brightness lineup for both commercial and educational spaces. The LS751HD adopts industry-leading 2nd generation laser phosphor technology and delivers 5,000 ANSI Lumens while eliminating the use of toxic mercury, reducing the cost and effort of frequent lamp replacement and lowering the total cost of ownership. The lamp-free light source offers enhanced sustainability for a greener environment while delivering up to 300” large images with 1080p high resolution and vivid colors no matter if you're in a boardroom, lecture hall, or public space. The projector boasts high installation flexibility with vertical lens shift, 1.6x optical zoom, easy image adjustment with H/V keystone and 4 corner correction, and diverse applications with 360° projection and portrait mode. The LS751HD also comes with HDMI 2.0b, ensuring access to original 4K quality content with HDR/HLG supported.

    2nd Generation Laser Phosphor Technology

    The LS751HD adopts the 2nd generation laser phosphor technology. In addition to inheriting excellent color performance, lamp-free design, and instant power on/off from the previous generation, technology on the new generation improves around 20% of brightness, better heat-resistance, and a smaller module design, making the images consistent in ambient settings as well as increased reliability with a more compact size for extended use in various scenarios.

    Up to 30,000-hour Lifespan
    2nd Generation Laser Phosphor Technology 1

    High Brightness for Large Venues

    Thanks to 5,000 ANSI Lumens brightness, you're guaranteed clear visuals of vibrancy with 1080p Full HD resolution which are perfectly suitable for large spaces with a lot of ambient light.

    5,000 ANSI Lumens
    High Brightness for Large Venues 1

    Ultra-Large Screen with Lower Cost-per-inch

    The projector allows for an up-to-300” image size, which is much larger and easier to install than commercial displays.

    Up to 300”
    Ultra-Large Screen with Lower Cost-per-inch 1

    V Lens Shift for Flexible Installation

    The tool-free, lens shift control knobs make adjusting the projection lens up and down easy. Welcome flexible installation options with an adjustable range (V: 0%, -18%) and fewer placement restrictions.
    V Lens Shift for Flexible Installation 1

    Adaptable to Any Environment with Optical Zoom

    Equipped with a 1.6x optical zoom lens, the projector allows users to choose the most ideal set-up location within a range, getting the desired image size without needing to change the existing interior design. ​
    Adaptable to Any Environment with Optical Zoom 1

    Lighter Weight and Compact Size​

    The LS751HD is 24% lighter of weight and 34% smaller in size compared to its predecessor, which reduces the cost of transportation and enhances the ease of installation.
    Lighter Weight and Compact Size​ 1

    Effortless Image Adjustment

    Horizontal and Vertical Keystone correction along with 4 corner adjustment features eliminate crooked or distorted images for a perfectly proportioned picture every time.
    H/V Keystone, 4 Corner Adjustment
    Effortless Image Adjustment 1

    Versatile Application

    The projector can freely rotate at any angle vertically allowing projection onto ceilings, walls, or floors. The portrait mode enables users to turn the projector 90 degrees to increase the vertical field of view and add more applications for projection mapping, staging, and advertising.​
    360° Projection, 90° Portrait Mode
    Versatile Application 1

    HDMI 2.0b Supporting 4K/HDR/HLG

    The projector comes with an HDMI 2.0b / HDCP 2.2 port, providing you access to original 4K quality content with HDR/HLG supported at a 60Hz frame rate from external devices (e.g. Roku stick, 4K Blu-ray player), producing the brightest whites, deepest blacks, and more detailed visuals. 
    HDMI 2.0b Supporting 4K/HDR/HLG 1

    Present the Best with Vibrant Colors

    Impress any audience with ViewSonic’s exclusive color technology, elevating your presentation with a true-to-life color experience.
    Present the Best with Vibrant Colors 1

    Centralized Control for Management Efficiency

    The LS751HD is compatible with Crestron, AMX, PJ Link, ATEN, and Extron systems, allowing for centralized device management for better operational efficiency​.
    Comprehensive LAN Control
    Centralized Control for Management Efficiency 1

    Non-stop 24/7 Operation

    The advanced cooling design enables 24/7 operation without degradation of image quality or work performance, making the projector ideal for applications that require continuous use.
    Non-stop 24/7 Operation 1

    A Simpler Way to Update Projector Software

    Skip trips to the service center by keeping software up to date easily via USB cable connection with your laptop.
    Learn more: https://youtu.be/irlhJLpDHas
    *The latest projector software update can be found in the download section at the bottom of the page when available.
    A Simpler Way to Update Projector Software 1

    USB Type A Power Supply

    The built-in 5V/1.5A USB output conveniently delivers power to HDMI wireless dongles, eliminating the need for separate power adapters when streaming multimedia content.
    USB Type A Power Supply 1

    Dimension & I/O Ports

    1. Front IR
    2. Lens
    3. HDMI 1.4/HDCP 1.4
    4. HDMI 2.0/HDCP 2.2
    5. USB-A (5V/1.5A, Service)
    6. Audio Out
    7. RJ45 (LAN Control)
    8. RS232
    9. Lens Shift Control Knob
    10. Zoom Ring
    11. Focus Ring
    12. LED Indicator
    13. Keypad
    14. IR



    • Projection System: 0.65" 1080p
    • Native Resolution: 1920x1080
    • Brightness: 5000 (ANSI Lumens)
    • Contrast Ratio: 3000000:1
    • Display Color: 1.07 Billion Colors
    • Light Source Type: Laser Phosphor
    • Light Source Life (hours) with Normal Mode: 20000
    • Light Source Life (hours) with SuperEco Mode: 30000 (Eco)
    • Lens: F=2.5-3.26, f=20.911-32.62mm
    • Projection Offset: 136%+/-5%
    • Throw Ratio: 1.4~2.24
    • Optical Zoom: 1.6X
    • Digital Zoom: 0.8x-2.0x
    • Image Size: 30"-300"
    • Throw Distance: 0.93-14.88m (100"@3.10m)
    • Keystone: H:+/-30° , V:+/-30°
    • Lens Shift V. Range: +0%, -18%
    • Audible Noise (Normal): 32dB
    • Audible Noise (Eco): 29dB
    • Input Lag: 49.9ms
    • Resolution Support: VGA(640 x 480) to 4K UHD(3840 x 2160)
    • HDTV Compatibility: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 4K UHD
    • Horizontal Frequency: 15K-102KHz
    • Vertical Scan Rate: 23-120Hz


    • HDMI: 2 (HDMI 2.0/ HDCP 2.2, HDMI 1.4/ HDCP 1.4)


    • Audio-out (3.5mm): 1
    • Speaker: 15W x2
    • USB Type A (Power): 1 (5V/1.5A)


    • RS232 (DB 9-pin male): 1
    • RJ45 (LAN control): 1
    • USB Type A (Services): 1 (share with USB A Output)


    • Power Supply Voltage: 100-240V+/- 10%, 50/60Hz (AC in)
    • Power Consumption:
      • Normal: 245W
      • Standby: <0.5W
    • Operating Temperature: 0~40℃
    • Carton: Brown
    • Net Weight: 4.5kg
    • Gross Weight: 6.6kg
    • Dimensions (WxDxH) with Adjustment Foot: 337x265x131.5mm
    • Packing Dimensions: 496x195x387mm

    OSD Language

    • English, French, German, Spanish, Italian, Portuguese, Dutch, Swedish, Finnish, Greek, Norwegian/Danish, Polish, Russian, Simplified_Chinese, Traditional_Chinese, Korean, Arabic, Japanese, Thai, Hungarian, Czechoslovak, Turkish, Farsi, Vietnamese, Indonesian, Romanian, Slovakian. Total 27 languages

    User Guide Language

    • English, S-Chinese, T-Chinese, Indonesian, Finish, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Arabic, Czech, Thai, Vietnamese. Total 20 languages

    Standard Accessory

    • Power Cord: 1
    • Remote Control: 1
    • QSG: Yes
    • Warranty Card: Yes (CN Only)

    Optional Accessory

    • Wall/Ceiling Mount: PJ-WMK-007