So a friend of my wife's husband has a projector setup that's really pretty slick. He's got some model of optoma 1080p DLP projector.

I have a chroma5 and calman.

Despite the obvious need to find out his exact model and the service menu/user menu adjustability, I'm really curious to figure out how to setup calman for projector use.

From what I've read pointed at the screen is most accurate for color so that you can compensate for the ambient light and screen color. But that projectors might not have enough total light for the low stim% fields. This is where screen offset comes in. I've seen a lot of recommendations to use it, but I'm not sure how to calculate it.

Do you just basically go xS - xP, yS -yP, YS -YP
wher xS,yS,YS are the x,y,Y for at the screen and xP,yP, YP are the xyY for at the projector?

With the chroma5 and the opal diffuser I also see that I can leave the Y mesurement at 0 and only calculate the x,y coordinates. I've also seen that I should take the measurements across an ANSI checkerboard and average them.

I'm sure I can figure it out once I get hands on, but I'd like to look like I know what I'm doing when I show up.

Be very careful...... it's your choice to screw it up

If you think you know what your are doing.... then go for it ....most don't get it

Fist-off , get ride off Calman.....

Fist-off , get ride off Calman.....

What do you suggest I use instead?

Fist-off , get ride off Calman.....
That seems like an odd thing to say. Why would you recommend getting rid of CalMAN?

What software would you recommend using with a Chroma 5?

If you think you know what your are doing.... then go for it ....most don't get it

Most do get it. We have thousands of installs.

Fist-off , get ride off Calman.....

And use what? No other product compairs to what we offer.

Lets assume the first replier was some type of interloper. Any help on my question?

Do you just basically go xS - xP, yS -yP, YS -YP
wher xS,yS,YS are the x,y,Y for at the screen and xP,yP, YP are the xyY for at the projector?
This is the simplistic method, but you basically have it. Luminance is done as a percentage, though.

With the chroma5 and the opal diffuser I also see that I can leave the Y mesurement at 0 and only calculate the x,y coordinates. I've also seen that I should take the measurements across an ANSI checkerboard and average them.
Not a checkerboard, but the ANSI Lumens targets, which are really used for aiming purposes only. With a low-gain screen, you want to take into account the spread from across the screen. With a higher-gain screen, you will want to focus taking a handful of measurements towards the center. The key is getting enough coverage and enough data for the measurements to be reliable.

Bill

This is the simplistic method, but you basically have it. Luminance is done as a percentage, though.


Not a checkerboard, but the ANSI Lumens targets, which are really used for aiming purposes only. With a low-gain screen, you want to take into account the spread from across the screen. With a higher-gain screen, you will want to focus taking a handful of measurements towards the center. The key is getting enough coverage and enough data for the measurements to be reliable.

Bill

So when you set up calman you use facing projector or facing screen. In some of the documentation I saw something about using facing screen when using screen offset. But I'm not sure how reliable that is. I think projector calibration setup could be the one area that calman could have better documentation.