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What is resolution for a projector really?

Discussion in 'Archived Threads 2001-2004' started by Matthew Will, Jan 15, 2003.

  1. Matthew Will

    Matthew Will Stunt Coordinator

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    Alright,
    Yea I am a newbie pretty much but I enjoy my home theater just as much as any of you. I have a somewhat "used" Epson Powerlite 5000XB. It is rated at 800X600 native with 750 lumens. For the money I paid on it, it works fine. Here is my question, what is resolution? I understand that 800X600 refers to how many pixels are projected but then what would a maximum resolution be? It is impossible to suddenly have many projectors go from an XGA resolution to display 1600X1200 max. I do not understand this concept. Are 1600X1200 pixels then displayed? If someone could please help me I would greatly appreciate it. I am very confused why people would recommend the Infocus X1 for home theater when it only has 800X600 native. I must be missing something. Thanks. Matt
     
  2. Allan Jayne

    Allan Jayne Cinematographer

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    The projector displays 800 x 600 only. It may accept inputs of 640 x 480, 800 x 600, 1024 x 768 (XGA) and others, but scales the input to become exactly 800 x 600.
    Furthermore, to do a 16:9 picture, the pixel utilization is 800 x 450. (It may use 480 rows of pixels for 480p (640 x 480) resulting in either a slight stretching distortion, or crop a slight amount off the sides, this varies from one brand to another, some can't do 16:9 at all this way.)
    For front projectors, 16:9 can be done with a special lens (sold separately, subject to availability) similar to what commercial theaters use for anamorphically shot films.
    Video hints:
    http://members.aol.com/ajaynejr/video.htm
     
  3. David Lorenzo

    David Lorenzo Stunt Coordinator

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    The X-1 is recommended for being a high value product. A projectors picture quality is a result of it's color rendition, contrast, brightness, and resolution among other things. So while it is only 800x600 it excells in other areas to make a good picture. If you have a higher budget then there are much better projectors, of course.
     

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