I phoned Panasonic this morning and was told…”The technicians in Japan are looking into this though they have not yet been able to re create this particular problem”. I reminded Mr Tarrent that this problem only shows up when viewed on a 1920-1080 42″ screen with 6-9dB switched on.
Having done further tests myself I note…
Filming in 1080 50i the dots are finer and slightly more elongated at 6, 9 and 12dB, not so apparent at 0dB.
Filming at 720 50P the dots are rounder and seem more apparent at 6, 9 and 12dB, they are not so apparent at 0dB.
Filming at 720 x 625 DV mode the dots are not apparent. (DV mode makes sense as you are taking a fair bit of detail out of the picture.)
I had a play with the SCENE FILE settings,
Detail level is 0 default, tried -7 and +7 with no effect on dots.
V Detail Level is 0 dft, tried +&-7 with no effect on dots.
Detail Coring is +5 dft, tried -7 with no effect on dots.
Matrix is set to Norm 1, tried Norm 2, Fluo & Cine-like with no effect on dots.
Skin tone detail is off, tried it in the on position with no effect on dots.
V Detail frequency is set to thin, tried Mid and Thick with no effect on dots.
So I am no further forward with my production model, another camera will be tested and sent up to me ASAP.