Quick guide to buying a projector
Profile: Road warriors and business travelers Type: Ultraportable DLP projectors below 2kg Est. Price: S$3,000 (US$2,208.76) to S$8,000 (US$5,890.02) One of the most significant improvements made in projectors over the last few years is the form factor. Portable models, traditionally pegged at anything below 3kg, now weigh under 1kg, considerably lightening the load of mobile presenters. Size has also become less of a constraint as manufacturers seek to engineer increasingly more features into a compact package.
Shopping specs  Brightness
Measured in ANSI (American National Standards Institute) lumens, this is a key feature to consider during purchase. For portable users, the projector has to be relatively bright, at least 1,000 lumens, since it has to cater to different lighting conditions. Do note that walls are poor reflectors of light, so always factor in extra brightness for presentations without a proper projector screen. Just remember: The brighter the room, the brighter the projector has to be in order to project a sharp image. Resolution
If your presentations are mainly PowerPoint slides and simple graphics illustrations, an SVGA (800x600) projector will offer the best value. If there's a need to display small details such as numerical data on an Excel spreadsheet, an XGA (1,024x768) unit will be a better buy. The trick to achieving the best image quality is to ensure that the projector and notebook both have the same native resolution. So if your laptop has an XGA display, the projector should have a native XGA resolution for best projection results. Keystone correction
Sometimes it may not be possible to align the projector to the center of the screen. As a result, the projected image becomes distorted. Keystone correction helps correct this problem. Most projectors offer vertical correction features while some come with the additional function to make horizontal corrections. Zoom lens
Many mobile presenters will find this handy in a projector as it lets them adjust the image size to fit the screen without having to physically move the unit. Most ultralight projectors are fitted with zoom lens with a 1.2x rating, which translates to a 20 percent maximum magnification of the native projected image size. Other nice-to-have features
| ||||||||
- Talkback
-
There are currently no comments for this story.
To post comments, you need to become a member. It's FREE.
