HD350 - Calibrated but need help with gamma curve! - AVS Forum
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post #1 of 3 Old 09-30-2012, 08:33 PM - Thread Starter
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Heya all.

Ive been calibrating my JVC HD350 and everything is getting close regarding colour/greyscale/bright/cont but when looking at the gamma graph it seems too high at 20% (around 2.5) and moves on an almost linear downward gradient to end up too low (at around 1.7) by 90% white.

What control needs to be adjusted to flatten the gradient of the gamma more evenly across the board?

Any help would be greatly appreciated
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post #2 of 3 Old 10-03-2012, 04:16 PM
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You should use the gamma equalizer of the HD350. But it's a little bit tricky to use is correctly.

Sources: Panasonic BDT-110, Toshiba HD-XE-1, Vantage VT-1S
Video processing: Lumagen Radiance 2041
Calibration: Full LightSpace CMS, SpaceMan ICC, SpaceMatch DCM, CalMAN 5 Business Pro, Chroma Pure
Probes: X-Rite EODIS3 / C6 / Chroma 5 / i1 pro 2
Targets: JVC-X500, TX-P65VTW60
Sound: Yamaha RX-V2067
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post #3 of 3 Old 10-04-2012, 03:49 AM - Thread Starter
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Thanks for the reply Nudg.

I managed to get it tracking close to 2.2 all the way up, but to do so I had to put the Lens apertur on 3 and reduce the contrast heavily.
Everything is reading pretty close to correct, but I now have quite a low FtL, reading, around 10.

Looks ok to my eyes, perhaps a little washed out as I had to reduce the colour significantly to compensate for the HD350's incessant need to oversaturate green and blue.

I have cleaned the lenses after reading about the fogging issue on these projectors, and I'm sitting about 4m away and throwing onto a 110" screen.
Cant seem to get the screen any brighter though - maybe I need a new lamp!

One powerball and Ill be buying a Lumagen Radiance!
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