Optoma ZK551 vs ViewSonic LS740-4K
Optoma ZK551 is in stock. ViewSonic LS740-4K is $99.01 cheaper, quieter and lighter.
Optoma ZK551$1,899 · Amazon Buy | ViewSonic LS740-4K$1,799.99 · Amazon Buy |
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| Key differences | ||
|---|---|---|
| White light output | ||
| White light output | 5,100 lm ISO | 5,000 lm ANSI |
| Native resolution | ||
| Native resolution | — | 4K UHD (3840 × 2160) |
| Lowest input lag | ||
| Lowest input lag | 4.4 msDerived | — |
| HDR formats | ||
| HDR formats | — | HLG |
| Fan noise | ||
| Fan noise | Normal 34 dB(A) · Eco 28 dB(A) | Normal 32 dB(A) · Eco 27 dB(A) |
| MSRP | ||
| MSRP | — | $1,799.99 |
| Best price | ||
| Best price | $1,899 | $1,799.99 |
| Room fit | ||
| Distance to screen | ||
| Distance to screen | 3.1–5.0 m | 3.1–5.0 m |
| Picture | ||
| White light output | ||
| White light output | 5,100 lm ISO | 5,000 lm ANSI |
| Brightness uniformity | ||
| Brightness uniformity | 75% | — |
| Imaging technology | ||
| Imaging technology | DLP | DLP |
| Chip / panel diagonal | ||
| Chip / panel diagonal | — | 0.65 in |
| Native resolution | ||
| Native resolution | — | 4K UHD (3840 × 2160) |
| Native aspect | ||
| Native aspect | 16:9Derived | 16:9Derived |
| Pixel shift | ||
| Pixel shift | XPR 4-way | — |
| Addressable resolution | ||
| Addressable resolution | 4K UHD (3840 × 2160) | — |
| Dynamic contrast | ||
| Dynamic contrast | 3,000,000:1 | 3,000,000:1 |
| Colour bit depth (per channel) | ||
| Colour bit depth (per channel) | — | 10 bit |
| Gamma / EOTF presets | ||
| Gamma / EOTF presets | 2.2, 2.4 | — |
| HDR formats | ||
| HDR formats | — | HLG |
| Colour management (CMS) | ||
| Colour management (CMS) | 6-axis | — |
| 3D | ||
| 3D | Yes | Yes |
| 3D formats | ||
| 3D formats | Frame packing, Side-by-side, Top-bottom, Frame sequential | Frame packing, Side-by-side, Top-bottom, Frame sequential |
| 3D glasses sync | ||
| 3D glasses sync | DLP-Link | DLP-Link |
| Light source | ||
| Light source | ||
| Light source | Laser (phosphor) | Laser (phosphor) |
| Emitter | ||
| Emitter | Blue laser + phosphor | Blue laser + phosphor |
| Light engine | ||
| Light engine | DuraCore | — |
| Light-source life | ||
| Light-source life | 30,000 h eco | 20,000 h normal · 30,000 h super eco |
| Constant brightness mode | ||
| Constant brightness mode | Yes | — |
| Cool-down time | ||
| Cool-down time | 90 s | — |
| Optics | ||
| Throw ratio | ||
| Throw ratio | 1.4–2.24:1 | 1.4–2.24:1 |
| Image size | ||
| Image size | 20–300 in | 30–300 in |
| Projection offset | ||
| Projection offset | 102% | 124% |
| Zoom | ||
| Zoom | Optical | Optical |
| Zoom ratio | ||
| Zoom ratio | 1.6×Derived | 1.6×Derived |
| Focal length | ||
| Focal length | 20.91–32.62 mm | — |
| Aperture (f-number) | ||
| Aperture (f-number) | 2.5–3.26 | — |
| Focus | ||
| Focus | Manual | Manual |
| Autofocus | ||
| Autofocus | No | No |
| Vertical lens shift | ||
| Vertical lens shift | 0–15.1% | — |
| Vertical keystone | ||
| Vertical keystone | 30° | 30° |
| Horizontal keystone | ||
| Horizontal keystone | 30° | 30° |
| Grid warp | ||
| Grid warp | Yes | Yes |
| Interchangeable lens | ||
| Interchangeable lens | No | — |
| Motion & gaming | ||
| Max input refresh | ||
| Max input refresh | 1080p: 240 Hz · 4K UHD: 60 Hz | 1080p: 240 Hz · 2560 × 1440: 120 Hz · 4K UHD: 60 Hz |
| Input lag | ||
| Input lag | 1080p: 60 Hz 17 ms · 120 Hz 8.6 ms · 240 Hz 4.4 ms · 4K UHD: 60 Hz 17 ms | — |
| Inputs & control | ||
| HDMI inputs | ||
| HDMI inputs | 2 × HDMI 2.0 (HDCP 2.3) | 2 × HDMI 2.0 (HDCP 2.3) |
| Max input resolution | ||
| Max input resolution | 4K UHD | 4K UHD |
| Control ports | ||
| Control ports | RS-232, 12 V trigger | RS-232 |
| PJLink | ||
| PJLink | Class 1 | — |
| Control-system drivers | ||
| Control-system drivers | Crestron | — |
| Horizontal scan | ||
| Horizontal scan | 15–150 kHz | 15–135 kHz |
| Vertical scan | ||
| Vertical scan | 24–240 Hz | 24–240 Hz |
| Smart platform | ||
| Ethernet | ||
| Ethernet | Yes | Yes |
| Casting | ||
| Casting | Miracast | — |
| Audio | ||
| Speaker power | ||
| Speaker power | 15 W | 15 W |
| Speakers | ||
| Speakers | 1 | 1 |
| Layout | ||
| Layout | Mono | — |
| Audio outputs | ||
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | ||
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | ||
| Dimensions (W × D × H) | 274 × 216 × 114 mm | 286 × 216 × 129 mm |
| Weight | ||
| Weight | 3,500 g | 3,100 g |
| Orientations | ||
| Orientations | Table, Ceiling, Rear, Portrait, 360° | Table, Ceiling, Portrait, 360° |
| Ceiling mount | ||
| Ceiling mount | M4, 10 mm screws | — |
| Dust filter | ||
| Dust filter | — | None |
| Ingress protection | ||
| Ingress protection | IP6XPreliminary | IP6X |
| Sealed optical engine | ||
| Sealed optical engine | — | Yes |
| Environment & power | ||
| Operating temperature | ||
| Operating temperature | 0–40°C | 0–40°C |
| Operating humidity | ||
| Operating humidity | — | 10–80%RH |
| Altitude | ||
| Altitude | 3,048 m · high-altitude mode | 3,658 m · high-altitude mode |
| Power draw | ||
| Power draw | Max 245 W · Normal 245 W · Eco 170 W | 165 W |
| Standby | ||
| Standby | Up to 0.5 W | Up to 0.5 W |
| Power supply | ||
| Power supply | External adapterPreliminary | External adapter |
| Mains input | ||
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Fan noise | ||
| Fan noise | Normal 34 dB(A) · Eco 28 dB(A) | Normal 32 dB(A) · Eco 27 dB(A) |
| Safety & support | ||
| Laser class | ||
| Laser class | Class 1 | Class 1 |
| Risk group | ||
| Risk group | RG2 | RG2 |
| Hazard distance | ||
| Hazard distance | — | 1 m |
| Marks | ||
| Marks | FCC | CE, FCC |
| Warranty | ||
| Warranty | — | 3 yr |
| User manual | ||
| User manual | https://region-resource.optoma.com/products/documents/K5mU9Peeq4zSbamp55pR5XFag9nk3bx7MMN5DCWz.pdf | https://www.viewsonicglobal.com/public/products_download/user_guide/projector/LSD500-4K/LSD500-4K_LS740-4K_UG_ENG.pdf |
| In the box | ||
| In the box | ||
| In the box | Power cord, Remote, Remote batteries, Quick start guide | Power cord, Power adapter, Remote, Remote batteries, Quick start guide |
| Remote | ||
| Remote | IR | IR |
Optoma ZK551$1,899 · Amazon
Buy
ViewSonic LS740-4K$1,799.99 · Amazon
Buy