Optoma HD28HDR vs ViewSonic PJD7828HDL review
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Common
Product
Optoma HD28HDR
ViewSonic PJD7828HDL
Model
HD28HDR
PJD7828HDL
Brand
Optoma
ViewSonic
Rating
4.5
Reviews
208
Translation properties
Projection system
DLP
DLP
Native resolution
1920x1080
1920 x 1080
Aspect ratio
16:9
16:9
Pixel number
2073600
480000
Brightness
3600 lumens
3200 lumens
Color reproduction
1.07 billion
1.07 billion
Contrast ratio
50000:1
20000:1
Throw ratio range
1.47 – 1.62
1.15 - 1.5
Lamp
Lamp type
240 W
210 W
Lamp life
Normal mode
4000
4000
Eco mode
15000
10000
Lens
F-number
2.1 – 2.3
1.49 - 1.72
Focal length
15.6 to 17.1 mm
16.9 - 20.28 mm
Lens shift
has not
Zoom ratio
1.0 - 1.1
1.0 - 1.1
Interface
HDMI
2
2
D-sub 15pin
has not
1
Composite video (RCA)
has not
1
Audio L/R (RCA)
has not
1
Audio out (Mini Jack)
1
1
USB (Type A)
1
has not
USB (Type mini-B)
has not
has not
RS232 (DB-9pin)
has not
1
Sound
Integrated speaker
Speaker power
5 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
28 dB
35 dBA
Eco mode
26 dB
30 dBA
Operating temperature
Min
5
5 C
Max
40
40 C
Features
Color
white
black
Wireless
Remote control
Mouse functions
Warranty
1 year
1 Year
Dimensions
Product size
9.5 x 12.4 x 4.3 inches
9 x 12.4 x 4.1 inches
Product weight
8.50 pounds
4.6 pounds
Optoma HD28HDR overview
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