Optoma ZK708T vs Optoma ProScene ZU820T
 MSRP $7,499 | MSRP $8,699 | |
|---|---|---|
| Key differences | ||
| White light output | — | 7,400 lm ANSI |
| Native resolution | — | WUXGA (1920 × 1200) |
| Throw ratio | 1.2–1.92:1 | 1.25–2:1 |
| Lowest input lag | 16.9 msDerived | — |
| HDR formats | HDR10, HLG | — |
| Fan noise | Max 36 dB(A) · Eco 33 dB(A) | Max 36 dB(A) · Eco 34 dB(A) |
| Price | MSRP $7,499 | MSRP $8,699 |
| Room fit | ||
| Distance to screen | 2.7–4.3 m | 2.7–4.3 m |
| Brightness | ||
| Rated brightness | — | 7,400 lmDerived |
| White light output | — | 7,400 lm ANSI |
| Claimed brightness (non-standard) | 7,000 lm | 8,800 lm |
| Brightness uniformity | 85% | 95% |
| Display system | ||
| Imaging technology | DLP | DLP |
| On-screen resolution | 4K UHD (3840 × 2160)Derived | WUXGA (1920 × 1200)Derived |
| Native resolution | — | WUXGA (1920 × 1200) |
| Native aspect | 16:9Derived | 16:10Derived |
| Addressable resolution | 4K UHD (3840 × 2160) | — |
| Contrast | ||
| Dynamic contrast | 300,000:1 | 3,000,000:1 |
| HDR | ||
| HDR formats | HDR10, HLG | — |
| 3D | ||
| 3D | Yes | Yes |
| Light source | ||
| Light source | Laser (phosphor) | Laser (phosphor) |
| Emitter | Blue laser + phosphor | Blue laser + phosphor |
| Light engine | — | DuraCore |
| Light-source life | Up to 30,000 h | 30,000 h eco |
| Optics | ||
| Throw ratio | 1.2–1.92:1 | 1.25–2:1 |
| Image size | 31.5–302 in | 50–300 in |
| Projection offset | 106% | — |
| Zoom | Optical | — |
| Zoom ratio | 1.6×Derived | — |
| Focal length | 17.63–27.9 mm | 18.72–29.59 mm |
| Aperture (f-number) | 2.3–3 | — |
| Focus | — | Motorised |
| Vertical lens shift | -106–126% | ±55% |
| Horizontal lens shift | ±10% | ±25% |
| Motorised lens shift | No | Yes |
| Vertical keystone | 30° | 30° |
| Horizontal keystone | 30° | 30° |
| Auto keystone | Yes | — |
| Corner correction | 4-corner | 4-corner |
| Grid warp | — | Yes |
| Motion & gaming | ||
| Input lag | 1080p: 60 Hz 33.8 ms · 120 Hz 17 ms · 240 Hz 17 ms · 4K UHD: 60 Hz 16.9 ms | — |
| Lowest input lag | 16.9 msDerived | — |
| Input lag at 4K 60 Hz | 16.9 msDerived | — |
| Inputs & control | ||
| HDMI inputs | 2 × HDMI 2.0 | 2 × HDMI 2.0 |
| HDMI inputs (count) | 2Derived | 2Derived |
| Newest HDMI version | HDMI 2.0Derived | HDMI 2.0Derived |
| Other video inputs | VGA, HDBaseT | VGA, HDBaseT |
| Max input resolution | — | DCI 4K |
| Audio inputs | 3.5 mm | 3.5 mm |
| Control ports | RS-232, 12 V trigger | RS-232, + Wired IR, 12 V trigger |
| Control-system drivers | Crestron, + AMX | Crestron |
| Horizontal scan | 15–140 kHz | — |
| Vertical scan | 24–120 Hz | — |
| Smart platform | ||
| Ethernet | Yes | Yes |
| Audio | ||
| Speaker power | 15 W | 10 W |
| Speakers | 2 | 2 |
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 374 × 302 × 117 mm | 486 × 433 × 186 mm |
| Weight | 6,300 g | 13,998 g |
| Orientations | + Table, + Ceiling, + Rear, + Portrait, 360° | 360° |
| Ingress protection | IP6X (light engine) | IP5X (light engine) |
| Sealed optical engine | Yes | — |
| Environment & power | ||
| Operating temperature | 0–40°C | 5–40°C |
| Operating humidity | 10–85%RH | 10–85%RH |
| Power draw | Max 366 W · Normal 300 W | Max 520 W · Eco 260 W |
| Standby | Up to 0.5 W | 0.5 W |
| Mains input | 100–240 V · 50/60 Hz | 90–264 V · 50/60 Hz |
| Noise | ||
| Fan noise | Max 36 dB(A) · Eco 33 dB(A) | Max 36 dB(A) · Eco 34 dB(A) |
| Safety & compliance | ||
| Laser class | Class 1 | Class 1 |
| Risk group | RG2 | RG2 |
| FDA laser notice | Notice 57 | Notice 57 |
| Marks | — | FCC |
| Support & ownership | ||
| Warranty | — | 3 yr |
| User manual | https://region-resource.optoma.com/products/import/Documents/b0d04fc7-f84c-44a5-b36c-e8109cc85fa3.pdf | https://region-resource.optoma.com/products/documents/cJBRmgq5eFRmK1IYH3CEw4MoyPCaPNqqn2dGsXXG.pdf |
| In the box | ||
| In the box | Power cord, Remote, Remote batteries, Quick start guide | — |