I have a question for the DVE guru's out there concearning Contrast and Brightness adjustments with the patterns on DVE with a 42" PZ85.
Brightness... There are 2 sets of instructions when using the PLUGE pattern (square in the middle and three bars to either side) where the outtermost is the blackest (blacker than black?). So first instruction is that you are supposed to lower brightness until those outtermost (blackest) bars dissapear. In the same narration you can alternately lower brightness and then raise it until the innermost bar (2% black) just starts to reapear and in the words of the narrator, 2% black bar (innermost) should "just" be visable and the next bar over 4% will be more noticable. As you can imagine, the resultant setting from the 2 of those is quite different. Instruction 1 brings about a setting of around 58 and the second instruction brings about a setting of 52. Definately different.
Contrast... This one uses a reverse greyscale pattern. This one is an even greater dilema. You raise contrast to 100 and then lower it until all the steps appear separated or with proper graduation from black to white. Ok. Fine. Lowering this only to 90 brings about the desired effect at least based on the narrators instructions for this pattern. Um ok. But that is, according to opinions here and calibrators in other threads, too high. 60 to 70 appears to be the common accepted range for the contrast. It is true that those also provide proper scaling from black to white. Just not as "brilliant" in terms of light blaring out of the whites. I am finding this one to be tricky. This also happens to me on THX Optimizer DVD's. Even 100 contrast and I can see the 8 distinct squares in their contrast pattern.
Stranger yet, if I simply were to leave the PZ85 in the unajusted Cinema mode of WARM, 100 contrast and 58 brightness, the set STILL passes those patterns. How can it pass all the patterns simply by being in the range of 60 to 100 contrast and 52 to 58 brightness and all variations I have tried in between? How does one then settle on some nailed down settings when they all appear to comply? Hard to know what settings on this PZ85 if you were never to read the threads around here and simply did what the narrator told you on the DVE disk.
I will be trying GetGray to see if it is more precise. Just waiting for the THX glasses. They should be here any day.
Until that, any feedback from those more experienced with this DVE product?