Its all about Resolution, Brightness, Weight and Size Although choosing
a projector can be complex, deciding what kind of machine you need should
be a relatively simple process involving four major considerations: room
size, resolution, technology and brightness (lumens). Other factors such
as contrast ratio, colour reproduction, inputs for composite and S-video,
and extra features, will also play a role in your decision.
Resolution
Resolution is the measurement of your PCs display in pixels. Most modern
laptops are XGA and it is better to match PC and projector if possible.
Technology
LCD is the established technology. It produces rich saturated colours
that are well-suited to business presentations and the displaying of computer
data such as spreadsheets and Word documents. DLP is an alternative technology.
It produces soft, natural colours. DLP images are smoother and less pixelated,
therefore well suited to displaying video images.
Brightness
All projectors are measured in ANSI lumens. For general use in meeting
rooms with screens up to 1 .8m wide, a brightness rating between 1500
and 2000 lumens is suggested. For larger audiences or screens you should
consider a projector with an output of 2000 lumens or more. Projectors
within 100-150 lumens of each other will produce very similar results.
Contrast ratio
Contrast ratio is the ratio of light output between the very brightest
and very darkest part of the image on the screen. The higher the contrast,
the more compelling the video image. Room light impacts on contrast ratio,
only in very dark rooms will high contrast ratio be apparent Typically,
for business applications, contrast ratio is not as important as lumens
and resolution. Look for a projector with a very high contrast ratio if
you II be using it in dark rooms to project video.
Loading navigation....
reset navigation