Optoma HD91
Optoma HD91
Top 27%8 points
Top 27%
Top specs and features

Optoma HD91: 25 facts and highlights

1. width

2. displays 3D with glasses

The device displays 3D images which you can only see with special 3D glasses. Unlike glasses-free 3D displays, the screens of these devices have larger viewing angles.
Optoma HD91
34% have it

4. has a VGA connector

VGA connector is a widespread connector and is found on many video cards, computer monitors, and some television sets.
Optoma HD91
84% have it

5. maximum projection size

The maximum size of image that a device can project without compromising quality.

6. resolution

7. has lens shift

The lens shift feature on a device allows the optical lens to be physically shifted up and down (vertical) or left and right (horizontal).
Optoma HD91
36% have it

8. audible noise

Audible noise is the noise that a device produces while in operation. Reduced audible noise improves quality.

9. ANSI lumens

The light projected by the device is brighter, i.e. it has a higher ANSI lumens measurement.

10. volume

11. height

12. thickness

13. has a socket for a 3.5 mm audio jack

With a standard mini jack socket, you can use the device with most headphones.
Optoma HD91
53% have it

14. lenses

A bigger variety of brand lenses means that you have more options and can find one that suits your needs.

15. HDMI ports

More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.

16. has a DVI connector

Devices that have a DVI connector (usually computers and notebooks) can be connected to the TV set.
Optoma HD91
13% have it

17. component ports

The more component ports a device has, the more devices can be simultaneously connected, such as video game consoles and set-top boxes.

18. contrast ratio

Contrast ratio is the visual distance between the lightest and the darkest colour that may be reproduced on the display. A high contrast ratio is desired, resulting in richer dark colours and more distinctive color gradation.

19. zoom ratio

Projector zoom allows you to increase or decrease the size of the projected image without moving the projector. Bigger zoom ratio provides more flexibility. The most common zoom ratio among today's projectors is 1.2. With a 1.2 zoom ratio you can vary the image size by 20% by simply adjusting the zoom lens.

20. lamp life

This shows the lifespan of the light source. Beamers need to have their lamps (light source) replaced every now and then.

21. USB ports

With more USB ports, you are able to connect more devices.

22. has a HDMI output

Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.
Optoma HD91
83% have it

23. power consumption on standby

How much power the device consumes when shut down but still plugged in.

24. has manual focus

This allows to manually set the focus.
Optoma HD91
71% have it

25. power consumption operation

How much power the device consumes when it's switched on.

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