Projectors- Best picture quality

Posted on June 11, 2012. Filed under: Uncategorized |

Many people in different conditions and situations use projectors extensively. They are used to display or project images for the benefit of many viewers and various people for better understanding of the subject. Projector is a device or instrument with which one can display or project enlarged image of photographic film or slide, so as to enable people follow and see the contents of the image and picture at large gathering. The main purpose of the projector is to enlarge and enhance the image of the film, retaining the original clarity by making use of lens system in its operation for clear and better understanding of the people.

There are different types and varieties of projectors like movie projectors, video projectors, slide projectors, overhead projectors, opaque projectors and ceiling projectors. Different types of projectors are used in different industrial segments, educational institutions and business establishments in the preparation of photographs, films, slide shows that will be helpful in presentations, seminars and training purposes. Indeed, projectors are one of the best inventions in the field of multimedia, which has greatly helped businesses in presentations, meetings and analyses.

Below mentioned are things to be considered before buying:

  • Screen Reflectivity
    This is the most important factor, as it states the brightness of our picture. For the viewers to witness all the lumens the projector is outputting, the projected light must be reflected off the screen for us. Screens have a gain, which is a ratio of the amount of light reflected by it. A white, clean wall will suffice, but then some light gets absorbed, thus the trade off in crisp contrast.
  • Screen size
    This is dependent on two things, the wall size itself and the viewing distance. The viewing distance is closely related to the screen size we can get. A normal screen size for average HT room in the city would be about 200 inches, and these days 16:9 aspect ratio is more suitable.
  • Viewing distance
    Just having a good screen is not enough. Checking the specs of the projector to gauge what screen size we will get with the amount of viewing distance we already have is utmost important. Projector central has a provision called Projection Calculator where one can choose the model, enter the distance, and get optimal screen size The farther we move from the screen, the bigger the image, but of course we cannot go too far as we will lose focus and brightness.
  • DLP or 3LCD
    Projectors come in two primary technologies – DLP and LCD. Both DLP and LCD technologies have their own advantages and disadvantages. DLP (digital light processing) models typically have much higher contrast ratios, which make for deeper black and better video quality, therefore make a great choice for home theater systems. LCD (liquid crystal display) projectors typically appear brighter with better color accuracy, but have lower contrast ratio than DLP. So, if we plan to use this for watching movies (home theater) than DLP may have an edge over LCD. Also, the most LCD projectors are bigger and bulkier.
  • Portability
    Portability is important; not just to enable us to move or travel with our projector, but to simplify installation and setup. It also makes it easy to try different screen sizes, distances, and different rooms to see what works best.
  • Brightness
    Without sufficient brightness our image will look muddy and soft, even in a dark room. Checking the ANSI Lumens rating, comparatively, projectors with 1,000 ANSI Lumens or greater have sufficient brightness for home theater. Room size and screen size/distance will affect the need for more or less lumens. Pixel Density and Scaling: Pixel Density is important. LCD/DLP projectors have a fixed number of pixels. If most of our viewing is HDTV, we should get as high a native pixel count as possible (preferably 1920×1080). A native pixel count of 1024×768 is sufficient for DVD. However, 720p HDTV signals require a 1280×720 pixel count for native display, while a 1080i HDTV input signal needs a native pixel count of 1920×1080.
  • Color Reproduction
    Color Reproduction is another factor. We should check for natural flesh tones and color depth. We should also check how colors look in the brightest and darkest areas of the image. Check the degree of color stability from input to output. Everyone has a slight difference in color perception and what looks pleasing.
  • Price
    There are 1080p projectors and 720p projectors. But then, there are multimedia and Home theater models with varying degrees of brightness ratings. So, if we are only going to watch sports on DTH set top box, and no Bluray movies etc., a full HD projector is really not necessary. Also our room, if it can be totally dark, with no windows, then we don’t need the brightest lumen spewing model out there, as those are really expensive.

Hence, after considering the above mentioned guidelines, there would be no way that we regret our purchase. Rather this might prove out to be our best buy.

Make a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Liked it here?
Why not try sites on the blogroll...

%d bloggers like this: