[BIG n]

This is my first experience using a color meter or calibration software and I have a couple of quick questions. I am using an eye-one display2 and CalMan v3.2 on my XBR5


1) Are the suction cups on the meter suppose to stick to the screen. I can not get the meter to perfectly lay flat against the screen. There is a slight gap (perhaps 1mm) at the top of the meter. The only way I could get it to lay perfectly flat on the screen is to push it a little.


2) Is it normal for the readings it gives me to flucuate a little when on continous readings or between single readings. When reading the color temp for example, I am getting fluctuations around 40 points. It might go from 5920 to 5960 on consecutive readings. It jumps around on all readings, not just temp.


Thanks,

 

[Bear5k]

Better questions for our support forum, but here goes...

Quote:
Originally Posted by BIG n /forum/post/15539558


This is my first experience using a color meter or calibration software and I have a couple of quick questions. I am using an eye-one display2 and CalMan v3.2 on my XBR5


1) Are the suction cups on the meter suppose to stick to the screen. I can not get the meter to perfectly lay flat against the screen. There is a slight gap (perhaps 1mm) at the top of the meter. The only way I could get it to lay perfectly flat on the screen is to push it a little.

If it's an LCD, then this is a little odd. If it really won't stick easily with no pressure, then you may want to use something that can apply very light pressure to the meter (e.g., a broomstick from a light broom might be light enough). You don't want any pressure discoloration at all near the meter.

Quote:
2) Is it normal for the readings it gives me to flucuate a little when on continous readings or between single readings. When reading the color temp for example, I am getting fluctuations around 40 points. It might go from 5920 to 5960 on consecutive readings. It jumps around on all readings, not just temp.

A little fluctuation is fine. Watch the xy measurements more so than CCT. If you are moving much more than 0.002 - 0.004 per refresh, then check your methods and check your meter. Some things to rule out include a set that has not been properly warmed up, pressure on the LCD glass, pet fur or dander that has gotten into the measurement area, etc.



Bill

 

[BIG n]

I got it to stick tonight. After I wiped off the screen to get a little dust off and cleaned the suction cups it worked a lot better.


After that the readings seemed to be closer per refresh. They were probably within .002-.004, but they still jump around. It is really apparent when looking at the bulls-eye.


I think it's working correctly. I just thought the readings would hardly fluctuate at all per refresh.


Thanks again,

 

[magnusr]

I also bought the calman with eye one display 2 bundle. Its also going to be my first calibration. I have a samsung 850 lcd series.


Im going to calibrate for 6500. Should I calibrate in a completly dark room or using the normal light I usually have on in the room?


So Im supposed to stick it to the screen, not only hang it using the cable?

Should I place it exactly in the center? In that case how important is exactly? cm or mm?



Any other tips would be welcome.

 

[zzkazu]

magnusr,


I placed the sensor in the middle of the display, CALMAN reports an error if it cant see the test patterns? are you using HTPC "PatGen'.


I would assume normal lighting would be the go for calibration.



I now have CALMAN talking to PatGen and automatically switching patterns, but still learning how to use the package correctly.

 

[magnusr]



Quote:
Originally Posted by zzkazu /forum/post/15574977


magnusr,


I placed the sensor in the middle of the display, CALMAN reports an error if it cant see the test patterns? are you using HTPC "PatGen'.


I would assume normal lighting would be the go for calibration.



I now have CALMAN talking to PatGen and automatically switching patterns, but still learning how to use the package correctly.

Im going to use the DVE blu-ray calibrationd disc test patterns. If that will do?

 

[Rolls-Royce]



Quote:
Originally Posted by magnusr /forum/post/15579134


Im going to use the DVE blu-ray calibrationd disc test patterns. If that will do?

If by "DVE blu-ray", you mean "HD Basics", then yes, it will do. Personally, I find its patterns less easy to navigate than other discs such as the AVS HD 709 and GetGray ones, especially for repeated runs.

 

[Rayjr]

mangusr,

If you look at at the CalMAN forum...I sent a full reply to your question.


RayJr

 

[Bear5k]



Quote:
Originally Posted by BIG n /forum/post/15549796


After that the readings seemed to be closer per refresh. They were probably within .002-.004, but they still jump around. It is really apparent when looking at the bulls-eye.

Sounds like it is within its repeatability spec, then. I have had some D2s that only move ~0.001. That being said, put the meter in "continuous" mode. It should jump just a hair less than with individual readings.

Quote:
Originally Posted by magnusr /forum/post/15569812


Im going to calibrate for 6500. Should I calibrate in a completly dark room or using the normal light I usually have on in the room?

However you normally watch for "preferred" viewings. If that is with the lights on, then that is what you use for calibration. If you prefer watching in the dark, then set your room up for that. Note, that changing the ambient lighting will change your perception of colors (it's called "adaptation", but its a technical issue). For first-time users, the important thing is not to expect a calibrated image when the lighting changes (it shouldn't be TOO dramatic unless you start turning on black lights and disco balls...).

Quote:
So Im supposed to stick it to the screen, not only hang it using the cable?

Should I place it exactly in the center? In that case how important is exactly? cm or mm?

Centimeters are fine. You'll get some edge-to-edge variation, but if you are generally centered, you should be fine.


Bill