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Optoma EP721 - DLP projector
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ViewSonic PJ513DB Projector
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ViewSonic 2500 Lumens DLP Projector Multimedia Projector
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Specs |
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| Rating |
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| Price |
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| Contrast Ratio |
2000:1
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2000:1
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2000:1
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| Image Aspect Ratio |
4:3 (Standard)
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16:9 (Wide Screen) | 4:3 (Standard)
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16:9 (Wide Screen) | 4:3 (Standard)
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| Light Source Power |
180W UHP
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| Platform |
PC | Mac
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PC | Mac
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PC | Mac
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| Image Brightness |
2200 ANSI lumens
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2200 ANSI lumens
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2500 ANSI lumens
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| Color Support |
24-bit (16.7M colors)
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| Lamp Type |
UHP
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| Type |
Unknown
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DLP Projectors
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DLP Projectors
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| Light Source Life |
2000 Hours
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2000 Hours
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2000 Hours
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| Display Technology |
DLP
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DLP
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DLP
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| Audio Output |
Speaker(s)
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RCA Jack | Speaker(s)
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Speaker(s)
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| Operation Noise |
32 dB
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513 dB
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37 dB
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| Image Size (Diagonal) |
27.5 in. - 302.9 in.
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37 in. - 162 in.
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23 in. - 273 in.
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| Interface |
USB | Serial (RS232)
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RS232C (mini DIN-8 pin)
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| Synchronization Range Horizontal |
15 - 100 kHz
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30 - 70 kHz
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31 - 79 kHz
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| Projection Method |
Front | Rear | Ceiling
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Rear | Ceiling
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| Form Factor |
Portable
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Portable
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Portable
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| UPC |
0796435111373
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766907284317
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766907240115
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| Speakers Output |
1 W
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2 W
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2 W
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| HDTV Formats |
576i | 720p | 1080i | 576p
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720p | 1080i
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720p | 1080i
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| Max Resolution (Interpolated) |
1600 x 1200 (UXGA)
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1280 x 1024 (SXGA)
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| Native Resolution |
800 x 600
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800 x 600
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1024 x 768
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| Screen Distance |
3.9 ft. - 39.4 ft.
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4.92 ft. - 19.68 ft.
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3.33 ft. - 32.8 ft.
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| Remote Control Features |
Laser Pointer
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| Special Features |
Keystone Correction
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Keystone Correction
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Keystone Correction
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| Video Input |
15 Pin D-Sub VGA | DVI | S-Video x 1
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4 Pin - Mini DIN (S-Video) | Composite Video | 15 Pin D-Sub VGA (& component)
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15 Pin D-Sub VGA | 4 Pin - Mini DIN (S-Video) | Composite Video | 15 Pin D-Sub VGA (& component)
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| Warranty |
1 Year, 90 Days On Lamp
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3 Years, 1 Year On Lamp
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3 Years, 1 Year On Lamp
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| Synchronization Range Vertical |
43 - 85 Hz
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50 - 87 Hz
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56 - 85 Hz
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| Weight |
4.4 lb.
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5.7 lb.
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5.4 lb.
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| Width |
10.2 in.
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10.3 in.
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10.4 in.
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| MPN |
EP721
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PJ513DB
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PJ558D
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| Analog Video Format |
NTSC | PAL | SECAM
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NTSC | NTSC 4.43 | PAL | SECAM
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NTSC | NTSC 4.43 | PAL | SECAM
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| Depth |
7.4 in.
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8.6 in.
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8 in.
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| Height |
2.8 in.
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4.2 in.
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3.8 in.
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