Optoma Ex551 Projector Specifications

							www.optoma.eu
EX551
DLP® Projector
Astonishing  
image quality   
to give a perfect  projection
 DIGITAL CONNECTIVITY Simple connectivity to your projector via HDMI; one 
cable gives you a clear projected image and audio.
 BRIGHTNESS WHERE IT MATTERS You can project even if there is ambient light 
 
in the room. The XGA resolution EX551 delivers   
an impressive 2800L, ensuring that even during the   
day everyone can clearly see the projected image. 
  COST SAVING – LONG LAMP LIFE Reduce the number of lamp changes with lamp life 
 
of up to 6000 hours2.
  The lamp is conveniently located so that it can be 
changed without removing the projector from a ceiling 
mount – saving you time and money.
 CLEAR, FOCUSED PROJECTION High contrast ratio, 5000:1 for a crystal clear viewing 
experience. Ensure you have your audience’s attention 
during a presentation with crisp whites and ultra-rich 
blacks making text and graphs easier to read. Bring 
images and video alive on the big screen for a fantastic 
viewing experience.
555555555555555555 
COLOUR GUARANTEE We are so confident that the EX551 image colour 
quality will remain as good as the day you bought it 
that Optoma will guarantee it for five years.
 FUTURE PROOF TECHNOLOGY Project 3D in your home, classroom or meeting room 
 
to engage and inspire your audience.
  Project 3D from a compatible computer or add the 
optional 3D-XL 3D Projector Adaptor and experience 
3D TV broadcasts, Blu-Ray 3D™movies and 3D games 
from Sony
® PS3 or Microsoft® Xbox 360.   
The Optoma 3D-XL is available separately.
  AUDIO PERFORMANCE Convenient audio from the built-in 2W speaker, 
 
or connect to an external audio system with the 
dedicated audio output.
  PRESENTATION PARTNER Run your presentation from the projector remote 
control. Use the page up/down button to change slides 
or the mouse control to take control of the mouse 
functions remotely (USB cable must be connected from 
the computer to the projector).
 PORTABLE The supplied carry case enables convenient protection 
and portability when the projector is not in use.
3D-XL 
Ready5         
5     
						

							EX551 SPECIFICATIONS
Native Resolution  XGA 1024 x 768
Max Supported Resolution    UXGA (1600 x 1200)
Display Technology   Single 0.55” XGA DC3 DMD chip DLP
® Technology  
by Texas Instruments
Brightness - BRIGHT mode
1   2800 ANSI Lumens
Contrast Ratio   5000:1
Lamp Life
2  6000/5000 (ECO/BRIGHT mode)
Noise Level   28dB (ECO mode)
Weight / Dimensions (W x D x H)  2.2 kg / 280 x 230 x 77mm
Inputs  HDMI (HDCP) - audio supported      
2 x 15 Pin D-Sub VGA  Component via adaptor  
S-Video 4 Pin Mini Din 
Composite RCA 
3.5mm Audio Mini Jack 
USB (remote mouse)
Control  RS232 - 9 Pin D-sub
OUTPUT   15 Pin D-Sub VGA 
3.5mm Audio Mini Jack
Audio  2W Speaker 
Aspect Ratio  4:3 Native, 16:9 Compatible 
On Screen Display   18 Languages: English, German, French, Italian, Spanish, 
Portuguese, Polish, Dutch, Russian, Finnish, Swedish, 
Greek, Norwegian/Danish, Hungarian, Czech, Turkish, 
Arabic & Farsi
Video Compatibility  PAL SECAM 576i/p, NTSC 480i/p, HD 720p/1080i/1080p
Uniformity   85% 
Displayable Colours  1073.4 Million
Horizontal Scan Rate  15.3 - 91.1kHz
Vertical Scan Rate   24 - 85Hz
Projection Lens  F/2.51~2.69; f=21.95~24.18mm, 1.1x Manual Zoom
Projection Distance   1.2 - 12m
Image Size   0.69 – 7.62m (27.24” to 300.04”) Diagonal 4:3
Throw Ratio   1.97 - 2.17:1 (Projection Distance:Image Width)
Keystone Correction   ± 40° Vertical 
Operating Conditions   Operating: 5 - 40˚C, 85% Humidity (Max), 3000m Altitude 
(Max) 
Power Supply   100 - 240V, 50 - 60Hz 
Power Consumption   233W BRIGHT mode < 0.5W Standby mode 
207W ECO mode < 0.5 Standby mode
Security   Security Bar, Kensington Lock Port, Password Protection
Standard Accessories  Soft Carry Bag, AC Power Cord, VGA Cable, Full Function 
Remote, Batteries x 2, Quick Start Guide, CD User 
Manual, Warranty Card 
RoHS   Compliant 
Lamp Warranty   1 year or 2000 hours - whichever comes sooner
Warranty   Warranty may vary by country. Please see  
www.optomaeurope.com or ask your local supplier  
for details
Colour Guarantee
3   5 Years
3D Support  120Hz frame sequential 3D for resolutions up to 720p. 
60Hz field sequential 3D for resolutions up to 480i
3D Viewing  Requires Optoma DLP
® Link™ ZD201 glasses 
– sold separately
3D Compatibility  The 3D features of Optoma projectors can only be used 
with compatible 3D content. Typical applications include 
use with 3D educational or 3D design and modelling 
systems. Support for 3D TV broadcast systems,(SKY  
in the UK), Blu-ray 3D™ and 3D games from the Sony
® 
PS3 or Microsoft® Xbox 360 will require the Optoma  
3D-XL that is available separately.
EX551
EX551 Remote Control1  Power
2  Enable Mouse Control
3  Mouse Control
4  Vertical Keystone Correction
5  Volume Control
6  Direct Input Source Selection
7  Freeze
8  AV Mute
9  Page Up/Down Control
10  3D Control
EX551 Connections11 Audio In
12  HDMI (audio supported)
13  S-Video
14  VGA 1 - Component
15  RS232
16  USB (Remote Mouse)
17  Audio Out
18  Video
19  VGA 2
20  VGA Out
21  Kensington™ Lock
EASY TO USE REMOTE CONTROL
1
Exceptional Connectivity /  
Multiple Terminals
11121314
17
1516
18192021
2
3
54
8
7
6
9
10
lens center
image offset
diagonal image size
screen width
screen height
projection distance
EX551 Projection Distance 1.2 - 12m (4:3 Aspect Ratio)     
Projection Distance (m)Max Screen Width (m)Min Screen Width (m)Max. Screen Height (m) Min. Screen Height (m) Min Diagonal Image 
Size (m) Max Diagonal Image 
Size (m) Min Diagonal Image 
Size (inch) Max Diagonal Image 
Size (inch) Max. Image Offset (m)
1.20
2.00
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
10.00
11.00
12.00 0.61
1.02
1.27
1.52
2.03
2.54
3.05
3.55
4.06
4.57
5.08
5.58
6.090.55
0.92
1.15
1.38
1.84
2.30
2.76
3.23
3.69
4.15
4.61
5.07
5.530.46
0.76
0.95
1.14
1.53
1.91
2.29
2.67
3.05
3.43
3.82
4.20
4.580.42
0.69
0.87
1.04
1.39
1.73
2.08
2.43
2.77
3.12
3.46
3.81
4.160.69
1.15
1.44
1.73
2.31
2.88
3.46
4.04
4.61
5.19
5.77
6.34
6.920.76
1.27
1.59
1.91
2.54
3.18
3.81
4.45
5.08
5.72
6.35
6.99
7.6227.24
45.40
56.75
68.10
90.80
113.50
136.19
158.89
181.59
204.29
226.99
249.69
272.39 30.00
50.01
62.51
75.01
100.01
125.02
150.02
175.03
200.03
225.03
250.04
275.04
300.04 0.07
0.11
0.14
0.17
0.23
0.29
0.34
0.40
0.46
0.52
0.57
0.63
0.69
For guide purposes only 
lens center
image offset
Optoma Europe Ltd.
42 Caxton Way, Watford Business Park, Watford, Hertfordshire, UK. WD18 8QZ
www.optoma.eu
1Brightness and lamp lifetime will vary depending on selected projector mode, environmental conditions and usage. As is common with all lamp based projectors, brightness will decrease over the lamp lifetime. 2Typical lamp life achieved through testing. Will vary
according to operational use and environmental conditions. 3Optoma guarantees that in normal use, Optoma DLP® colour quality will be indistinguishable from when new. Exclusions: (a) Guarantee is voided if the projector is subject to damage through misuse. 
(b) Guarantee may be void in industrial or commercial entertainment environments where d\
ust or smoke is excessive (c) Guarantee will not apply if lamp brightness is below 50% due to wear or if the projector is not\
 working due to other faults. (d) Over time worn  lamps within all projector types will show a slight colour variance. Copyright © 2011, Optoma Europe Ltd. All other product names and company names used herein are for identification purposes only and may be trademarks or registered trademarks of their 
respective owners. Errors and omissions excepted, all specifications are subject to change without notice. DLP
®, BrilliantColor™ and the DLP logo are registered trademarks of Texas Instruments. All images of products are for representation purposes only. Whilst 
every care is taken to provide accurate images of our products, actual products may differ slightly. Some product images may have been digitally altered by us to add an Optoma logo to the front panel. Optoma reserves the right to amend or alter actual product or  product images without notice. Some images may be simulated.
V4 - 03/05/12