[PDP-LX6090] Weird ISF behaviour

[ev666il]

I've just tried calibrating my PDP-LX6090 (non-H) with ControlCAL but after unlocking the ISF modes, I noticed they don't output any more light than the other modes, nor do they behave any differently. I had to set Contrast to 42 to have the white bars disappear from the pattern on the AVSHD 1.3 test disc (white clipping occurred). Is there something wrong with my screen? :confused: :(

My BD player is a Panasonic DMP-BD30 outputting at 1080p through my Pioneer VSX-LX70 a/v receiver (HDMI passthrough).

[ev666il]

I've just phoned Pioneer's customer service to inquire about my panel's weird ISF behavior.

The guy who first answered me said it depends on greyscale calibration. Then he gave me a technician who only said to phone later and ask of another technician -.- So did I, and the latter told me the ISF modes are NOT supposed to be any brighter and will look the same as any other AV mode if calibrated by the same guy with the same equipment. He almost treated me like a retard ("It's not like you unlock two memory banks and suddenly you get superior performances").

Now I'm utterly confused. From what I read on this and other forums, the ISF modes are indeed much brigther than standard av selections and this does not depend on how other parameters are calibrated.

So... what? :(

[Turbe]

What Meter are you using and Calibration Software (ColorHCFR?)?

Can you Post your reports/graphs from the Calibration Software and settings?

Also, you don't want to go > 40 with Contrast.


the ISF modes are indeed much brigther than standard av selections and this does not depend on how other parameters are calibrated.

What Power Save setting are you using?


Check this LX5090 Thread out: http://www.controlcal.com/forum/showthread.php?t=119

He's calibrated to 46fL.

The 50" can get more than the 60" (60" with ISFccc in NA range 47-53fL).

[Turbe]

I saw you posted this elsewhere:

Thanks for your reply, Chad.

To better clarify my situation, I'll add that at present I can count on no meter, so I didn't even use the color patterns.


You want to use a meter to check the light output (the Y in Calibration Reports- check 100%W).

Perhaps you are asking about WTW. See: http://www.controlcal.com/forum/showthread.php?t=144

[ev666il]

Also, you don't want to go > 40 with Contrast.

Indeed I don't. All ISF settings I've seen so far have Contrast set anywhere between 28 and 35 and users have always reported the picture to be noticeably brighter than in MOVIE mode with Contrast set to 40. This is unfortunately not my case, as ISF-Day looks and behaves exactly like MOVIE and Contrast 40 looks the same in both.

Using the AVS HD Set Contrast pattern, I am unable to make clipping bars above 235 disappear without exceeding a Contrast setting of 40 in either MOVIE or ISF-Day. According to pretty much everyone else's experience, this is not what I should be getting from ISF under normal conditions. Or is it?

What Power Save setting are you using?

My Power Save setting has always been set to OFF.

Check this LX5090 Thread out: http://www.controlcal.com/forum/showthread.php?t=119

Unfortunately, I won't be able to mess with my display's settings anymore before 21st July: I'm graduating this friday and I'll be on vacation with my gf next week. When I'm back, I may give those settings a try (though I know 5090s and 6090s require different settings).

You want to use a meter to check the light output (the Y in Calibration Reports- check 100%W).

I can't afford a meter and won't have access to Y readings before I can hire a professional (which will happen once the BDP-83 is released in Europe).

Could you please confirm that a properly calibrated ISF mode will not look the same as an equally calibrated non-ISF av selection?

[Turbe]

Could you please confirm that a properly calibrated ISF mode will not look the same as an equally calibrated non-ISF av selection?

Though both can be calibrated similiar (when <40fL), many feel the ISFccc Interface is more vibrant.

ISFccc Interface has advantages when >40fL is desired.

You may be having issues with your source player or something else if you have it connected through another device (i.e. AVR).

[ev666il]

ISFccc Interface has advantages when >40fL is desired.

At this point, it looks like I'll have to wait until I hire a professional as with no meter, there's no way I can get above 40fL.

Thanks for clarifying :)

[Turbe]

I'm not sure how you can even tell what specific light output you are getting since you are eyeballing it.

[ev666il]

I suppose MOVIE mode is not >40fL out of the box (I did not change the Contrast setting or Gamma curve). Since there is no difference between MOVIE mode and the ISF modes in my case, I simply assumed they're both outputting less than 40fL.