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Optoma Technology EP1691 DLP
Optoma TW610ST 3D
NEC NP64
BenQ MP780ST+
Casio XJ-M145 3D
Optoma Technology EP1691 DLP Projector
Optoma TW610ST 3D Projector
NEC NP64 Projector
BenQ MP780ST+ 3D
Casio XJ-M145 3D Projector
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Release Date
Apr 2004
Sep 2010
Mar 2010
Jan 2012
Oct 2011
HDTV Formats
1080i, 480p, 480i
720p, 1080i, 1080p/60
1080i
720p, 1080i, 1080p/60, 576i, 576p
720p, 1080i, 1080p/60, 576i, 576p
Contrast Ratio
2500:1
3000:1
1600:1
3000:1
1800:1
Display Technology
DLP
DLP
DLP
DLP
DLP
Image Brightness
2500.0 ANSI lumens
3100.0 ANSI lumens
3000.0 ANSI lumens
2500.0 ANSI lumens
2500.0 ANSI lumens
Platform
PC
PC
PC
Type
DLP Projectors
DLP Projectors
DLP Projectors
DLP Projectors
DLP Projectors
Form Factor
Portable
Average Rating
 4.5 stars
 4.0 stars
 4.0 stars
 n stars
 n stars
Picture
100% Positive
100% Positive
Connectivity
100% Positive