BenQ LH750 vs Christie LW551i
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
 BenQ LH750 | Christie LW551i MSRP $5,985 | |
|---|---|---|
| Display system | ||
| Imaging technology | DLP | 3LCD |
| Technology brand | — | 3LCD |
| Number of imaging devices | 1 | 3 |
| Chip / panel diagonal | — | 0.76 in |
| Native aspect ratio | 16:9 | 16:10 |
| Native resolution | 1920 × 1080 | 1280 × 800 |
| Optics | ||
| Throw ratio | 1.16–1.88:1 | 1.5–3:1 |
| Projection distance table | 60″: 1.54–2.5 m · 100″: 2.57–4.16 m · 150″: 3.85–6.24 m · 200″: 5.14–8.32 m | — |
| Zoom type | Optical | Optical |
| Zoom ratio | 1.62× | — |
| Focus | Manual | Motorized |
| Vertical lens shift | — | -40–125% |
| Horizontal lens shift | — | ±22% |
| Motorized lens shift | — | Yes |
| Fixed offset | 100% | — |
| Focal length | 17.2–27.7 mm | — |
| F-number | 1.5–2.08 | — |
| Lens material | all-glass | — |
| Interchangeable lens | — | Yes |
| Image size range | 30–300 in | 30–600 in |
| Lens memory | — | 3 |
| Vertical keystone | -40–40° | -12–12° |
| Horizontal keystone | -40–40° | -20–20° |
| Corner / warp correction | 4pt | 8pt |
| Light source | ||
| Light source type | LED | Lamp |
| Light source detail | 4LED | 330 W UHP lamp (standard mode 2,500 h, eco mode 3,000 h) |
| Lamp wattage | — | 330 W |
| Light source life | Normal: 20,000 h · Eco: 30,000 h | Normal: 2,500 h · Eco: 3,000 h |
| Warm-up time | 10 s | — |
| Cool-down time | 2 s | — |
| Light-source dimming | Continuous | — |
| Brightness | ||
| ANSI lumens | 5,000 lm | 5,500 lm |
| Contrast & black level | ||
| Dynamic contrast | 500,000:1 | 3,000:1 |
| Dynamic light control | — | Dynamic iris |
| Colour | ||
| Rec.709 gamut | 98% | — |
| Gamut metric | Coverage | — |
| Colour temperature presets | Native, Custom | — |
| Gamma / EOTF presets | 2.2, 2.4, 2.6, Custom | — |
| Bit depth / 'number of colours' | 30 bit | — |
| Calibration & picture control | ||
| Colour management system | 6-axis | — |
| Picture mode memories | — | 4 |
| HDR | ||
| HDR formats | HDR10, HLG | — |
| Motion & gaming | ||
| Max refresh rate | 1920×1080: 120 Hz | — |
| Input lag (rated) | 1920×1080 @ 60 Hz: 33.4 ms | — |
| Audio | ||
| Speaker power | 20 W | 16 W |
| Speaker count | 1 | 2 |
| Audio channels | Mono | Stereo |
| Audio outputs | 3.5 mm | — |
| Inputs, control & connectivity | ||
| Max input signal | 3840 × 2160 | 1600 × 1200 |
| HDMI port count | 2 | 2 |
| HDMI ports (feature-level) | HDMI-1: HDMI 2.0b, HDCP 2.2; HDMI-2: HDMI 2.0b, HDCP 2.2 | — |
| Audio input terminals | — | 3.5 mm, Rca |
| Horizontal scan frequency | 15–135 kHz | 15–106 kHz |
| Vertical scan frequency | 23–120 Hz | 56–120 Hz |
| VGA input | — | Yes |
| USB media playback | — | Yes |
| RS-232 | Yes | Yes |
| LAN control | Yes | Yes |
| Wired IR input | Yes | Yes |
| PJLink class | — | Class 1 |
| Control ecosystem drivers | Crestron | Crestron |
| Ethernet | Yes | Yes |
| 3D | ||
| 3D support | Yes | — |
| 3D formats | Frame packing, Side-by-side, Top-bottom, Frame sequential | — |
| Setup automation | ||
| Auto keystone | Yes | Yes |
| Acoustic noise | ||
| Fan noise (sound pressure) | Normal: 34 dB(A) · Eco: 29 dB(A) | Standard: 37 dB(A) · Eco: 31 dB(A) |
| Environment & power | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | 10–90%RH | 10–85%RH |
| Altitude / high-altitude mode | 3,000 m | 3,048 m |
| High-altitude mode | Yes | Yes |
| Operating orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Rated voltage | 100–240 V | 100–240 V |
| Rated frequency | 50–60 Hz | 50–60 Hz |
| Power consumption (max) | 415 W | 480 W |
| Power consumption by mode | Typical: 360 W | — |
| Standby power | 0.5 W | 0.35 W |
| Networked standby power | 2 W | — |
| Physical & installation | ||
| Width | 421 mm | 498 mm |
| Depth | 286 mm | 476 mm |
| Height | 132 mm | 147 mm |
| Weight | 5.8 kg | 8.9 kg |
| Mount hole pattern | Thread: M4 · Screw length mm: 8 | — |
| Safety & compliance | ||
| Photobiological risk group | RG2 | — |
| Safety & market certifications | — | FCC, UL, CE, CCC |
| Support & ownership | ||
| Warranty | — | 🇺🇸 US 3 yr |
| Light-source warranty | — | 500 hours or one year (whichever comes first) |
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20BUSINESS/UserManual/LH750/LH750_UM_EN_250618184335.pdf | https://www.christiedigital.com/globalassets/resources/public/020-000461-02-christie-lit-man-usr-d1.pdf |
| In the box | ||
| Box contents | Projector, Remote, Batteries, Power cord, Hdmi cable, Quick start guide, Warranty card, Regulatory statements | Power cord, Computer cable, Hdmi dvi cable, Remote control, Batteries, Lens cover, Adapter cover, Cable holder, Security label, Software cd, Manual cd |
| Remote type | IR | IR |
| 3D glasses in box | 0 | — |