Panasonic PT-LW336 vs ViewSonic LSD400W
 Panasonic PT-LW336 |  ViewSonic LSD400W$699.99 | |
|---|---|---|
| Key differences | ||
| White light outputANSI | 3,100 lm ISO (Normal power, Dynamic mode) · 3,100 lm ANSI | 4,000 lm ANSI |
| Throw ratio | 1.47–1.77:1 | 1.54–1.72:1 |
| Light source | Lamp | Laser (phosphor) |
| Fan noise | Normal 38 dB(A) · Eco 35 dB(A) | Normal 30 dB(A) · Eco 25 dB(A) |
| Price | — | $699.99 |
| Room fit | ||
| Distance to screen | 3.2–3.8 m | 3.3–3.7 m |
| Brightness | ||
| Rated brightness | 3,100 lmDerived | 4,000 lmDerived |
| White light outputANSI | 3,100 lm ISO (Normal power, Dynamic mode) · 3,100 lm ANSI | 4,000 lm ANSI |
| Claimed brightness (non-standard) | — | 4,800 lm |
| Brightness uniformity | 85% | — |
| Display system | ||
| Imaging technology | 3LCD | DLP |
| Chip / panel diagonal | 0.59 in | 0.65 in |
| On-screen resolution | WXGA (1280 × 800)Derived | WXGA (1280 × 800)Derived |
| Native resolution | WXGA (1280 × 800) | WXGA (1280 × 800) |
| Native aspect | 16:10Derived | 16:10Derived |
| Contrast | ||
| Dynamic contrast | 20,000:1 | 3,000,000:1 |
| Colour | ||
| Colour bit depth (per channel) | — | 10 bit |
| Calibration | ||
| Colour management (CMS) | — | 6-axis |
| 3D | ||
| 3D | — | Yes |
| 3D formats | — | Frame sequential |
| 3D glasses sync | — | DLP-Link |
| Light source | ||
| Light source | Lamp | Laser (phosphor) |
| Emitter | — | Blue laser + phosphor |
| Lamp power | 230 W | — |
| Light-source life | 10,000 h normal · 20,000 h eco | 20,000 h normal · 30,000 h eco |
| Life defined as | 50% brightness | — |
| Warm-up time | — | 0 s |
| Cool-down time | — | 0 s |
| Optics | ||
| Throw ratio | 1.47–1.77:1 | 1.54–1.72:1 |
| Image size | 30–300 in | 30–300 in |
| Projection offset | — | 124% |
| Zoom | Optical | Optical |
| Zoom ratio | 1.2×Derived | 1.11×Derived |
| Focal length | 19.11–22.94 mm | 21.85–24 mm |
| Aperture (f-number) | 2.1–2.25 | 2.4–2.53 |
| Focus | Manual | Manual |
| Autofocus | — | No |
| Vertical keystone | 35° | 30° |
| Horizontal keystone | 35° | 30° |
| Auto keystone | Yes | — |
| Corner correction | — | 4-corner |
| Motion & gaming | ||
| Max input refresh | — | 720p: 120 Hz |
| Inputs & control | ||
| HDMI inputs | 2 × HDMI (HDCP 1.4) | 2 × HDMI 1.4 (HDCP 1.4) |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | — | HDMI 1.4Derived |
| Other video inputs | VGA, Composite | — |
| Max input resolution | — | WUXGA |
| Audio inputs | 3.5 mm, RCA | — |
| USB media playback | Yes | — |
| Control ports | RS-232 | RS-232, + Wired IR |
| PJLink | Class 2 | — |
| Horizontal scan | — | 15–102 kHz |
| Vertical scan | — | 24–120 Hz |
| Smart platform | ||
| Ethernet | Yes | No |
| Audio | ||
| Speaker power | 10 W | 3 W |
| Speakers | — | 1 |
| Layout | Mono | Mono |
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 335 × 252 × 96 mm | 286 × 216 × 129 mm |
| Weight | 2,900 g | 3,100 g |
| Orientations | + Table, Ceiling, + Rear | Ceiling, + Portrait, + 360° |
| Dust filter | Replaceable | None |
| Ingress protection | — | IP6X |
| Sealed optical engine | — | Yes |
| Environment & power | ||
| Operating temperature | 5–40°C | 0–40°C |
| Operating humidity | 20–80%RH | 10–80%RH |
| Altitude | 2,700 m | 3,658 m · high-altitude mode |
| Power draw | Max 300 W | 114 W |
| Standby | — | Up to 0.5 W |
| Power supply | Built in | External adapter |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | Normal 38 dB(A) · Eco 35 dB(A) | Normal 30 dB(A) · Eco 25 dB(A) |
| Safety & compliance | ||
| Laser class | — | Class 1 |
| Risk group | — | RG2 |
| Hazard distance | — | 1 m |
| Marks | — | CE, FCC |
| Support & ownership | ||
| Warranty | — | 3 yr |
| User manual | — | https://www.viewsonicglobal.com/public/products_download/user_guide/projector/LSD400W/LSD400W_UG_ENG.pdf |
| In the box | ||
| In the box | — | Power cord, Power adapter, Remote, Remote batteries, Quick start guide |
| Remote | — | IR |