Continuing the discussion on projectors from last week, let us analyse what other parameters are vital while choosing a projector for your dream theatre.
Brightness: Brightness can be interpreted as the amount of light produced by the projector (measure in ANSI Lumens, which is what all manufacturers will advertise), or as the amount of illumination that you can perceive on your screen (measure in foot-Lamberts, this also takes into account your screen and hence is harder to measure).
Also, the brightness level of the images you project depend on the content itself, the brightness of the room, size of the image and the seating distance from the screen. The size & brightness of the room will determine how many Lumens you should opt for, the larger & brighter the room the higher the Lumens recommended.
Resolution: The resolution of a projector is the number of pixels used to display an image, as a general rule, the higher the number of pixels the greater the detail created on the
screen thereby leading to a clearer image, and also reducing the visibility of the pixel structure. Today, manufacturers offer a wide range of pixels with multiple resolutions (usually depicted as A X B, where A is the number of pixels on each horizontal row and B is the number of pixels on each vertical column, so 1024 X 768 indicates 1024 pixels on each horizontal row, 768 pixels on each vertical column).
Some of the common resolutions found in the market are 720 P (1280 X 720 pixels, with P denoting progressive scan, essentially meaning the whole picture is displayed all at once), 1080 P (1920 X 1080 pixels, currently the top choice to display high quality HD content from Blu-Ray and other formats), and the new buzz in town 4K (which shows a picture with 4 times the 1080P pixel output, either in 4096×2160 or 3840×2160 pixel formats)
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