1. Join Now

    AVForums.com uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

drawbacks of using a grey screen?

Discussion in 'Projectors, Screens & Video Processors' started by keyser, Feb 22, 2004.

  1. keyser

    keyser
    Standard Member

    Joined:
    Jul 23, 2000
    Messages:
    902
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    18
    Location:
    gardabaer, Iceland
    Ratings:
    +1
    What are the drawbacks of using a grey screen(instead of white 1.0) that has gain of about 1.0-1.5?

    The grey is better for rooms that have some reflections, and the gain gives a brighter pic... are the drawbacks a more limited viewing angle and possible hotspotting? How bad are those with the firehawk and Da-Lite HCCV(has a little less gain)?
     
  2. LV426

    LV426
    Administrator Staff Member

    Joined:
    Jul 14, 2000
    Messages:
    12,789
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Somewhere in South Yorkshire
    Ratings:
    +4,988
    Limited viewing angle and/or possible hotspotting are artefacts of a screen with gain - not of greyness on its own.

    In the case of a grey screen, then the natural colour (depending on the shade) might result in a gain of 0.9 (in other words, a loss of, say 10%). So, a grey screen with a 'gain' of 1 actually DOES have some gain, to overcome the greyness. And therefore its viewing angle will be limited.

    True to say that the greater the gain, the greater the risk of these artefacts affecting you. At 1, you probably won't notice. At 1.5, you might.
     
  3. buns

    buns
    Banned

    Joined:
    Apr 29, 2001
    Messages:
    6,066
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    58
    Location:
    Belfast
    Ratings:
    +1
    Apparently however there are now higher gain screens with very little viewing angle restriction..... which of course contradicts the theory so i dont know how they work!

    ad
     

Share This Page

Loading...