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Thread: Sony VW85 White Crush

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    Default Sony VW85 White Crush


    Sony VW85 White Crush
    I'm a refugee from the JVC projectors..too much judder (imo). Having read Joe Rods excellent review of the Sony unit have rushed out and bought one. Problem: out of the box settings exhibit quite severe white crush. Reducing the default gamma setting under Cinema 1 from 10 to 2 and the contrast from 90 to 60 improves things a bit but makes the image very dim. I suspect I'm missing something. Any ideas ?
    Settings, Auto Iris 2
    Cinema 1
    Lamp, high

    Many thanks !

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    HDJ Platinum Club Member Disco Batman's Avatar
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    I sure can't help you on this question, but I can give you a bump.

    I'd also shoot JoeRod a PM on here, he's prob your best bet.
    I own some stuff.

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    Thanks. Forgive my idiocy but what is a 'PM' ?

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    Quote Originally Posted by bozochops View Post
    Thanks. Forgive my idiocy but what is a 'PM' ?
    Hi bozochops. Heh--no idiocy in that question at all. There is SO much acronym-creep on the internet, especially in tech-oriented forums. "PM" means "private message." At the top of the screen, click on "My Profile." From there, click on "Private Messages" (they're kind of like private email messages that occur exclusively within the confines of the forum). From there click on "Send New Message" (on the left side of the screen). To send one to joerod, just type his forum handle ("joerod") into the "Recipient Users" box at the top of your new message.

    Yours,

    David

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    Thank you very much. I know consider myself educated.

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    All depends on your screen as well. I just switched form a HP DaLite to JKP Affinity Screen. JKP = Joe Kane Productions It is a very good match with the Sony and I have zero white crush issues with it, now I did with the HP screen, some but not too bad. Also not all Projectors are created equal even
    if they are the same model. So have a good ISF tech look at it might be worth it. I happen to have a buddy that works for a Home Theater company who is ISF tech certified and he had some new $2500 software that really helped even tweak my projector more, so the $150 extra bucks was well worth it, of course I
    got a discount since I know him.

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    PJNut ^^ great post. Joe developed a very smooth (high resolution) white screen.

    -Robert

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    Thanks for the message. My screen is brand X but I didn't notice white-crush when using the JVC 750. Would I be correct in thinking that reducing contrast is the only option in reducing perceived white-crush ? Or would gamma be relevant ? Put another way, on high lamp mode, what sort of contrast/ brightness and gamma settings would be optimum for most hd input material without introducing noticeable white-crush ?
    Thanks.

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    I am surprised you say you need to reduce contrast all the way down to 60. Using the patterns on the Spears and Munsil calibration disc and using Cinema1 with gamma 6 on a High Power screen I find a contrast setting of 80 works for me.

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