AVS Forum Special Member
Join Date: May 2008
Location: San Francisco - East Bay area
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Some TVs can be forced into 3D mode. With those, you don't need a 3D pattern source... your 2D test patterns will be converted to 3D by the TV. But many TVs will only switch to 3D mode if they are sent a 3D source so you'd have to have either a 3D-compatible video signal generator or a 3D Blu-ray disc with 3D patterns on it. I don't know of a 3D Blu-ray disc with calibration patterns... yet. The AV Foundry Video Forge signal generator can convert any pattern to 3D and also offers some extra-cost 3D patterns that are 3D only.
Once you have the 3D source for calibration patterns, you have to have a meter that allows you to put the 3D glasses over the lens of the meter and the glasses have to be turned on. 3D makes the light seen through the 3D glasses very dim so the meter will struggle to make readings if the meter isn't very very good at measuring low light levels (not many meters are, even the ones selling for 5 figures).
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