Calibration?

Discussion in 'Home Cinema Buying & Building' started by Pete Delaney, Mar 4, 2004.

  1. Pete Delaney

    Pete Delaney
    Guest

    Products Owned:
    0
    Products Wanted:
    0
    Ratings:
    +0
    Hi folks,
    Last night I did some calibration on my Z1 in low lamp mode using my 28" JVC as a reference, which is directly below my 83" widescreen, and my 'mk 1 eyeball'. The reason I wanted to play with the settings was to try and counter the effects of ambient light being generated by magnolia walls and a white ceiling (I can't paint the walls unfortunately).

    I have achieved some really nice results, contrast and colour are much better when compared to cinema mode. However, in order to achieve this I have some of the settings turned up v high. Is it ok to have some of the settings turned up high/fully? Mid setting is 32 and I have the contrast up full at 64. The result is V V pleasing, it's really good now but I don't want to potentially damage the pj....

    Your thoughts would be greatly appreciated
    :)
    Cheers.
    Pete...

    Edit: The pj is still in low lamp mode, which is where I want it to stay.
     
  2. Peter Parker

    Peter Parker
    Distinguished Member

    Joined:
    Apr 6, 2001
    Messages:
    13,228
    Products Owned:
    1
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    UK.
    Ratings:
    +2,764
    On my first DLP. a Davis DLS8, I ran the contrast at almost one end of the scale, and the brightness at the other. I was surprised that those settings gave the best results as well, but it didn't seem to have any detrimental effects as far as I could tell.

    I don't think you'll damage the pj by adjusting the settings, as that's what they're meant to be there for, and if you get a good picture from it, that's all that matters. :)

    Running the lamp in high instead of eco (if it has one) will reduce lamp life, but that's about it as far as I know.

    Gary.
     
  3. Pete Delaney

    Pete Delaney
    Guest

    Products Owned:
    0
    Products Wanted:
    0
    Ratings:
    +0
    Cheers Gary,

    At the mo I am bored out of my head as I am in the middle of an 8 week lay off due to back surgery. So I am pretty much housebound, but it did give me plenty of time to do a search on this very question.

    From what I now understand, brightness and contrast do not affect lamp intensity as that is fixed in either low or high mode. I believe it just alters the way that the lcd panels deal with the light from the lamp. I am sure someone 'in the know' will confirm this.

    During my search, what did petrify me was the amount of Z1 owners (and others) getting ridiculously low lamp life. One poor fella had 280hrs and then it went pop.:eek:

    Blimey that's criminal! I wish lamp makers would place a minimum hours guarantee instead of a stupid 3 month guarantee.
     
  4. LV426

    LV426
    Administrator Staff Member

    Joined:
    Jul 14, 2000
    Messages:
    13,440
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Somewhere in South Yorkshire
    Ratings:
    +5,851
    Yep. Brightness & contrast only affect the maximum and minimum opacity for the LCD pixels within the LCD's own limits. No impact on lamp life, and no impact on the LCDs will result from driving them 'hard'. Indeed, it is often necessary to do so to squeeze the last percent of performance out of an LCD.
     
  5. Pete Delaney

    Pete Delaney
    Guest

    Products Owned:
    0
    Products Wanted:
    0
    Ratings:
    +0
    Cheers Nigel,

    That's great to have it confirmed. I have got good results now in a very light painted room, when compared to the picture that the 'out of the box settings' gave me...:)
     

Share This Page

Loading...
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice