Optoma ES521
Optoma ES521
Top 45%6 points
Top 45%
Top specs and features

Optoma ES521: 21 facts and highlights

1. width

2. has a VGA connector

VGA connector is a widespread connector and is found on many video cards, computer monitors, and some television sets.
Optoma ES521
84% have it

3. ANSI lumens

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

4. thickness

6. can be controlled remotely

A remote control allows you to control the device remotely. The remote control can be included or optional.
Optoma ES521
85% have it

7. weight

8. audible noise

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

9. lenses

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

10. maximum projection size

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

11. resolution

12. audio input ports

More audio input ports mean that more audio devices such as microphones and keyboards can be connected at once.

13. 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.

14. lamp life

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

15. power consumption operation

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

16. refresh rate

The frequency at which the screen is refreshed. Higher frequency results in less flickering (less noise) and more natural movement representation in action-intense scenes.

17. composite ports

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

18. 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.

19. HDMI ports

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

20. USB ports

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

21. has manual focus

This allows to manually set the focus.
Optoma ES521
71% have it

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