Optoma HD66 vs ViewSonic PJD7828HDL review
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Common
Product
Optoma HD66
ViewSonic PJD7828HDL
Model
HD66
PJD7828HDL
Brand
Optoma
ViewSonic
Rating
4.0
4.5
Reviews
303
208
Translation properties
Projection system
DLP
DLP
Native resolution
1280 x 720
1920 x 1080
Aspect ratio
16:9
16:9
Pixel number
1024000
480000
Brightness
2500 lumens
3200 lumens
Color reproduction
1.07 billion
1.07 billion
Contrast ratio
4000:1
20000:1
Throw ratio range
1.55 - 1.7
1.15 - 1.5
Lamp
Lamp type
190 W
210 W
Lamp life
Normal mode
3000
4000
Eco mode
4000
10000
Lens
F-number
2.41 - 2.67
1.49 - 1.72
Focal length
21.88 - 24 mm
16.9 - 20.28 mm
Lens shift
Zoom ratio
1.0 - 1.1
1.0 - 1.1
Interface
HDMI
2
2
D-sub 15pin
1
1
Composite video (RCA)
1
1
Audio L/R (RCA)
1
1
Audio out (Mini Jack)
1
1
USB (Type A)
1
has not
USB (Type mini-B)
1
has not
RS232 (DB-9pin)
has not
1
Sound
Integrated speaker
Speaker power
2 W
10 W
Sound type
mono
mono
Resolution support
640 x 480
1024 x 768
1280 x 800
1400 x 1050
1920 x 1080
Video compatibility
NTSC
PAL
SECAM
3D
Settings
Keystone correction manual
Vertical +- 40 degrees
Vertical +- 40 degrees
Keystone correction auto
Operating distance
19 ft
19 ft
Security functions
Audible noise
Normal mode
30 dBA
35 dBA
Eco mode
28 dBA
30 dBA
Operating temperature
Min
5 C
5 C
Max
40 C
40 C
Features
Color
white
black
Wireless
Remote control
Mouse functions
Warranty
1 Year
1 Year
Dimensions
Product size
12.7 x 9.2 x 3.8 inches
9 x 12.4 x 4.1 inches
Product weight
6.8 pounds
4.6 pounds
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