[guido]

Finally got hold of DVE disk and have been running through the following tests on my SP4805 (as per the excellent posts by Gary).

Title 13 Chap 12
Title 12 Chap 14
Title 13 Chap 02
Title 07 Chap 04

Found it was quite iterative on the BTB and WTW tests and results are an average of going round the Title 12 and 13 tests.

Found that doing T13 C02, the combined B&W test adjusting brightness and contrast I would get this set up OK, making sure could just see the centre white and centre black boxes. Would then go to T12 C14 and would have to adjust the contrast to see the last defined white rectangle past the black dots. Then go to T12 C13 and could see the two inner bars either side, but not the blacker than black as should be. However could see lots of picture noise close up, backed off brightness one alleviated this completely. Went round and round doing these three, and then did the colour test using the blue filter... found this quite difficult. Then did the whole lot again.

My setup is as follows: SP4805, ceiling mounted 314cm from screen projecting a 174x97cm image. Screen Gain is 1.1

Projector is set to Low Power.

Contrast: 59
Brightness: 53
Colour: 46

Tint: 50
Gamma: Film (White Peak 10)
Colour Temp: 6500k
Sharpness: Standard
RGB Offsets: all 50


As my projector is quite close to the screen - about closest you can get due to difficulty in mounting point... I will always have on Low Power.... these figures would have to be done again if I switched to normal operating power.

Anyway... just thought I would share this! Interested to hear other peoples calibrations.

Guido

[Piers]

Originally Posted by guido

Went round and round doing these three, and then did the colour test using the blue filter... found this quite difficult. Then did the whole lot again.

Guido

Welcome to the world of calibration! Most of the important controls are inter-active. One pass isn't enough, the question is how many passes are needed? For gray-scale calibration my AutoCal Pro software will keep trying for 100 passes until it reaches perfection or gives up! Humans tend to limit it to half a dozen attempts - usually enough to get it right.