2016年4月28日星期四

TP46 Projector Buying Guide

If you’re on the market for a new home theater projector or a business projector, this projector buying guide for 2016 has you covered. We discuss the essentials of picking the right projector for your needs, including types of projectors, resolution, brightness, and more. The right multimedia projector could mean the difference between a great or poor presentation.



Brightness
Projector brightness is rated in ANSI lumens, and most projectors range from 700 to 5,000 lumens, with a higher lumen count meaning a brighter picture. Brightness affects how well you can see the projected image in your environment. The more ambient light a room has, the brighter your projector needs to be to compensate. Otherwise, the image will look washed out and barely visible. The ideal room setting for a projector is perfectly dark, where even a low brightness projector can produce a brilliant image.
If you don’t know how bright of a projector you need, the general rule of thumb is to purchase the brightest one in your budget and reduce the brightness as needed. Since a projector’s brightness is tied to its price, one trick to lowering costs on the projector is to reduce the amount of ambient light in the room.

Resolution

Projectors range in resolution from as low as 800 × 600 for business models, to 4K for theater use. Most home theater projectors tend to support full HD 1080p natively. For displaying PowerPoint presentations, multimedia, and web pages, a 720p-capable projector will do fine. Only consider a 1080p model if you plan to display HD movies.

Keystone Correction

When a projector isn’t mounted properly—too low to the ground or too close to the ceiling— the projected image will appear as an odd trapezoid (keystone) rather than a perfect square or rectangle. Most projectors can correct for this effect to a point, using what’s called keystone correction.
Keystone correction is done on the software level, like digital zoom on a DSLR camera. And like digital zoom, image quality deteriorates as more correction is applied. If you cannot adjust the positioning of your screen and projector, you’ll want to get a model with good keystone correction or lens shift—more on that below.

WiFi Wireless Connection


You can connect your iPhone/iPad/Android device/Mac with the WiFi projector wireless. Only Support: Android Device system version 4.2 Above / iPhone & iPad & Mac iOS system version 7.0 Above/ Windows version 8.1 Above 


Wireless Projector are coming for you!

This article originally by Tronfy.com

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