ViewSonic has unveiled three new members of Lightstream DLP projector product range, focusing on colour accuracy and sound output. They are the Pro7827HD; PJD7828HDL; and PJD7720HD.
Each projector features ViewSonic’s PortAll system: a hidden compartment containing an MHL-HDMI port and able to house a dongle for wireless media streaming. A micro-USB port is also featured.
In terms of audio, ViewSonic uses its SonicExpert technology, which is a redesign of the (10W) speaker transducer and chamber. Sound reproduction is supported from 20Hz to 20KHZ, and is optimised using the SonicMode feature.
We are unsure of the full specifications for the PDJ7720HD, as ViewSonic has not released them yet. However, we know that all models share 1920 x 1080 display resolution and optical zoom features (1.3x, or 1.1x on PJD7720HD).
The Pro7827HD enjoys some additional features to other new Lightstream models. It is ViewSonic’s first projector with an RGBRGB six-segment colour wheel, producing ‘purer’ colours. The projector can show 10-bit colour and covers 100% sRGB/Rec.709. Different modes are built in, such as Movie, Day and Night (latter two can be ISF certified using the integrated calibration tools).
20% vertical lens shift is supported, as well as horizontal and vertical keystone correction, with four-corner adjustment. Brightness is 2,200 lumens, and the lamp will last between 3,500 and 6,000 hours. The projector has a 1.1 – 1.5:1 throw ratio (30″ – 300″ image) and a 0.8x – 2.0x digital zoom.
As well as the MHL-HDMI and USB port in the PortAll compartment, an additional MHL-HDMI port is featured. Regular HDMI, VGA (in/out), component, S-Video, composite and USB-A ports are also built in.
The PJD7828HDL also uses SuperColor technology (six-segment colour wheel). However, rather than RGBRGB the wheel is RGBCYW.
The projector’s lamp (4,000 – 10,000 hours) outputs 3,200 lumens of brightness. Screen size and digital zoom are identical to the Pro7827HD, but throw ratio is slightly different: 1.15 – 1.5:1. The unit has +/-40° vertical keystone correction. HDMI, VGA (in/out), component (shared with VGA), S-Video, composite, USB-A and RS232 ports are featured, as well as the PortAll interfaces.
Both of the above projectors measure 316 x 228 x 103.7mm and weigh 2.6kg or 2.4kg, respectively. They will be released in March (Pro7827HD), for $900, or in April (PJD7828HDL) for $730.
Finally is the PJD7720HD. This unit has 3,200 lumens of brightness and a 1.49 – 1.64:1 throw ratio; it is designed as an entry-level projector. Full details will be released closer to its launch date in May. It will cost $680.
Analyst Comment
It’s good to see companies offering projectors with reference to sRGB and Rec. 709, especially on lamp-based products. (BR)
