Runco LS-10 and DHD4

Runco LS-10 and DHD4

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  • This topic has 3 replies, 3 voices, and was last updated 11 years ago by Anonymous.
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  • #480
    Anonymous
    Inactive

    Hi all,

    Had a chance to calibrate the new Runco LS-10/DHD4 combo. The Runco LS-10 projector is a very nice light cannon in essence. In high lamp mode, I measured 35 ftL with no clipping on a StudioTek 130 Microperf screen about 120 inch diagonal 2.40:1, so you get roughly plasma light output with this 3 chip projector. I was impressed enough with the PJ itself, that I will likely install this projector in my room. However, issues still revolve around the DHD4. Have to say, it really is a half baked potato. If you use the standard ISF code, you only get a very coarse 2 point greyscale system. Runco failed to mention that the only way to get higher resolution and multi-point greyscale was to interface the DHD4 with CalMan 4. However, I found the gamma to actually be ruler flat with a 2.22 curve, so no real need to adjust light output; although the greyscale could use it. I found that if you enetered the field service menu, you will have to reset the DHD4, as it keeps you in the field service menu until you do so, and changes in the greyscale are not reflected while logged into this menu. The field service menu is where you check to see what output resolution the Runco is set at. This is where some problems occurred, as if it was set in Auto, it would not accept a 1080p24 signal from my QD-780. I had to force it into 1080p24 in the field service menu solely in order for the signal to be accepted. However, Runco informed me there are currently issues with the Auto and 1080p24 modes, so they recommended that it be set specifically to output 1080p60 for the time being. I also noticed that when I made a change in the greyscale, it would not be apparent in the visible image unless I changed sources, then came back to the source I was calibrating. Also, there appears to be EDID and CEC issues with the HDMI. We are looking into this with a demo DHD4. The CMS, labeled PEC, is only a two dimensional system with the ability to only adjust xy coordinates. Luminance is set by Runco. This is fine if the math is correct…but if it ain’t…well you know the drill. However, they have incorporated all 6 colors in the CMS where the DHD3 was only primaries. Bottom line is, pair an LS-10i with a Lumagen and pictures will likely be awesome! DHD4 still has issues that need to be resolved.

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  • #1988
    Gregg Loewen
    Keymaster

    thanks for the report!!

    CMS where the DHD3 was only primaries

    The above is fine, if and only if, they do the math correctly. Like you said…we know the drill.

    Id love to get a new Runco for the classroom setup.

    #1992
    Anonymous
    Inactive

    Thanks for the info. I’m picking one up today for review, so it’s good to know in advance about any issues with the DHD4.

    #2003
    Anonymous
    Inactive

    Hi Mike,

    How did your review go? Curious to see if Runco fixed some of the issues (the DHD4 ties in with their new stereoscopic 3D projector so there is a lot of money riding on the line for it to sit in its current state), or if you found the same issues I came across?

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