The following is from the EX500 thread and I hope it will help some of you get a better understanding about calibration and possible differences between Bravia models.
Originally Posted by StuBerger
Hey Mike..how you been, I too haven't been on here much lately. BTW...the white balance conundrum your discussing is for the 60 right? If I remember correctly you thought the 55 was good at default, right?
My whites look white..my blacks look black and thus the picture goes on!
Yeah, I said that because of a meter report I saw of a 55. I'm pretty sure he said that was his default chart. Hence why I'm pretty sure the 55 is fine.
The complaints of others on other sizes of reddish whites does worry me though that all the models do suffer the same white balance the 60 does.
As does the guy that called me out over brightness. I absolutely believe him that the disc tells him 53. Mine does too. But when you set brightness to 50 and adjusst the white balance properly 50 ends up being correct. In all honestly I don't believe its the white balance directly that effects the brightness. Like all sets nowadays there is a algorythm controlling the brightness and or contrast of the sets based on image brightness level. IE ABL for plasmas, and backlight control mechanisms for LCD.
I believe that when playing with the levels of the white balance of the set, the backlight gets adjusted making the set brighter and darker causing the shadow detail to be to high and to low. Hence you need to properly adjust the white balance to get the whole set right and balanced.
Also I can tell you this for 100 percent certainty. Having green bias up to +1 shows black box detail in the shade of green that shouldnt be seen. It shows fully one more black level on the pattern. Showing +2 goes nuts showing 2 full boxes that shouldnt. Then you go down to where I set it and that goes away. But you also need the the correct red and especially blue levels. Also of note is the defualt gain conntrols in the white balance cause the image noise. Using calibrated gain settings makes all the noise go bye bye.
I cant quite explain the whole procedure anymore but those of you that have been in the thread here long enough know I have basically been over each setting with a fine tooth comb. You also know that after many changes in calibration settings I used this calibration that I still use has hasnt changed now for months. The reason being on the meter reports it shows by far the best calibration that I have ever done. And to my eye the set is perfect as can be.
Also of note, my buddy bought a 60ex5 last month, uses my settings and they work meter wise pretty much identical to mine. Maybe not exactly but then again even if I meter my set ten times the readings will be different slightly.
In other words I don't believe the hype anymore about calibrations all so different on same model sets in different hoiuses. I think in most cases its just to much training and not enough real world. The tolerances allowed on the chips and specs of these sets is tighter than the tolerances of the meters non pros use. In most cases I dont believe the difference is a full click of a setting.
The only settings I bieleve will be different home to home on 2 same model sets is brightness and backlight due to different room lighting.
I know some wont like to hear that but scientifically it just doesnt make sense. The color of white is the color of white or black for that matter. If the meter is against the screen so that no outside light is interfering and or a completely dark room is used than nothing should effect the white balance set to set using the same meter. Only the spec tolerance and as I said the tolerance from set to set is tighter than all but expensive pro meters. Also the tolerance is much tighter than user menu notches of adjustment allow.
Again this is all my opinion and worthless to some, But Golden to me
Today, 10:32 AM #4507 | Link
AVS Special Member
Join Date: Jun 2002
Location: Arlington TX
Great post and probably explains why I can use your settings on my 60EX700 with just changes on backlight, brightness and of course Sharpness, due to our sitting distance to set amount of light in our viewing environment.
Mike, if you don't mind, I'd like to post your msg in the EX710 topic. Some new owners over there could benefit from your comments.