[Wavy]

Does anyone know the actual gamma values associated with the three HT1000 gamma modes (Dynamic, Black Detail, and Natural)?


From some calibration work with SMART III, I believe Natural to be a gamma of approx 2.0, Black Detail to be around 1.6. I have not had time to measure the Dynamic gamma. I was expecting a gamma around 2.4 so both Natural and Black Detail seem low.


Thanks,


Wavy

 

[Guy Kuo]

Try natural gamma and -2 on contrast enhance.

 

[Wavy]

Thanks Guy, but the contrast enchancement feature is not available for DVI or RGB which are the only two inputs I use.

 

[LMDA1]

Read over this thread by Andrea Manuti, specifically this page http://www.avsforum.com/avs-vb/showt...&pagenumber=7. It should answer your questions andthen some.

 

[Wavy]

I had read Andrea's thread last fall an lost track of it. Although a great thread, it only brings up more questions. Mainly how do the gamma controls of the video source and the HT1000 interact? The more I think about this the more confused I am....


If both the video source and the display device are applying a gamma, the two gammas will mulitply. If a display device has a gamma of 2.0 and the video source has a gamma of 2.0 you would end up with a final gamma of 4.0 which seems like it would crush all the whites.


What am I missing?

 

[Joel Schnur]

After a calibration with color facts and using "natural" I get anout 2.2 for gamma.


Joel

 

[scottyb]

Joel,


could you post your settings? I know each projector is different, but it will give a good starting point. Also what input are you using? Thanks in advance!


scott

 

[jmschnur]

Projector settings

2/29/04 Hoya Daylite multicoat Flter

RGB input




Projector settings


B=3

C=120 (from TT)


Color Correction


R=-4

G=-3

B=-4

Y=-3

M= -9

CY= -2


White Balance (D65)


BR= -2

BG= -1

BB= -4


CR = 171

CG= 155

CB =141






DVI 8 March 2004 Hoya Daylite Filter


Color Correction-

-2= R

-5 =G

-4=B

-4=Y

-5=M -9 for DSS HDTV

-2=CY


Gain =0


White Balance


-6 = BR -21 for DSS

-2 = BG -17 for DSS

-4 = BB -19 for DSS


135= CR 155 for DSS

129= CG 149 for DSS

118= CB 133 for DSS