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Vivitek DU857
Vivitek DU857 Key Features
- 5000 ANSI Lumens
- Native Widescreen
- WUXGA 1920*1200 Native Resolution
- 3000 hour lamp life (typical)
- 15000:1 Contrast Ratio
- Native Widescreen
- 12v Trigger
- Monitor Out
- Network Control
- 3.4kg (7.5lb.)
- DLP® technology with BrilliantColor™ for vibrant and rich picture quality
- 5,000 lumens high brightness with 4,000 hours lamp-life in Eco Mode
- Easy image corrections with 4 corner geometric adjustment, horizontal and vertical keystone corrections
- 1.5x zoom ratio for installation flexibility
- Power over USB-A (5V/1.5A) enables connection of HDMI based multimedia or NovoConnect wireless collaboration devices: NC-X300, NovoPro
- New On-screen display (OSD) control menu for ease of use and improved control over viewing options
- viviBlack enhances black level for higher contrast ratio
- Supports network control
- Environmentally friendly design and compliance
- Click for Vivitek DU857 Detailed Specifications
Availability: Please Call
Throw Calculator
| Lens | Vertical Offset |
Minimum Throw |
Maximum Throw |
Foot Lamberts |
|---|---|---|---|---|
| Standard Lens | 6cm | 0.9m | 1.36m | 1759 |
Vivitek DU857 Throw Chart
Along the horizontal axis is the distance in metres between the front of the projector and the projection screen. Up the vertical axis is the width of the image the projector will produce. We use width rather than diagonal as the width will remain consistent with the throw distance and zoom setting whereas the height and therefore the diagonal will vary depending on the source. For example, if you have a 4:3 aspect ratio projector and use it to watch a 16:9 aspect ratio DVD then the image will be "letterboxed", i.e. the width will remain the same but the height will be reduced.
Projector Throw From Screen Size Table (16:10 aspect ratio, in metres)
| Diag. | Width | Height | Min. Throw | Max Throw | Area | Nits |
| 0.76 | 0.64 | 0.40 | 0.90 | 1.35 | 0.26² | 6130.9 |
| 1.00 | 0.85 | 0.53 | 1.18 | 1.77 | 0.45² | 3541.2 |
| 1.50 | 1.27 | 0.79 | 1.77 | 2.66 | 1.01² | 1573.9 |
| 2.00 | 1.70 | 1.06 | 2.36 | 3.54 | 1.80² | 885.3 |
| 2.50 | 2.12 | 1.32 | 2.95 | 4.43 | 2.81² | 566.6 |
| 3.00 | 2.54 | 1.59 | 3.54 | 5.32 | 4.04² | 393.5 |
| 3.50 | 2.97 | 1.85 | 4.13 | 6.20 | 5.51² | 289.1 |
| 4.00 | 3.39 | 2.12 | 4.71 | 7.09 | 7.19² | 221.3 |
| 4.50 | 3.82 | 2.38 | 5.30 | 7.98 | 9.10² | 174.9 |
| 5.00 | 4.24 | 2.65 | 5.89 | 8.86 | 11.24² | 141.6 |
Nits are a measure of the brightness of the final image. Multiply the figure in the Nits column by the gain of your screen to obtain a true figure.
Projector lamps dim over their life spans so make allowances by multiplying the foot nits by 0.75 to get a reasonable average.If you intend to calibrate your projector then this will also affect brightness. For home cinema use in a well darkened roon, about 42-70 Nits is ideal. For office use, aim for at least 175.
Screen Size For Given Throw Table
| Throw | Min. Width | Max. Width |
| 1.20 | 0.57 | 0.86 |
| 2.00 | 0.96 | 1.44 |
| 2.50 | 1.20 | 1.80 |
| 3.00 | 1.44 | 2.16 |
| 3.50 | 1.67 | 2.52 |
| 4.00 | 1.91 | 2.88 |
| 4.50 | 2.15 | 3.24 |
| 5.00 | 2.39 | 3.60 |
| 5.50 | 2.63 | 3.96 |
| 6.00 | 2.87 | 4.32 |
| 6.50 | 3.11 | 4.68 |
| 7.00 | 3.35 | 5.04 |
| 7.50 | 3.59 | 5.40 |