AVS Forum Special Member
Join Date: Jan 2003
Location: Portland, Oregon, USA
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First let me say I am not an expert on the Infitec system. So while I think the following is correct I might not have a handle on all aspects of the Infitec calibration.
The Infitec splitter, in conjunction with the Infitec color filters in the projectors, assuming it is like Dolby, splits the left and right images by doing color filtering so that when wearing the glasses the left eye sees one set of three bands, and the right eye sees a different set of three bands of color. The brain is very good at merging these into a single 3D image.
Because of this you need to calibrate each projector without the Infitec splitter in the loop, and the special filter in the Projector out of the light path (I am assuming the Infitec filter in the projector is optical).
Both projectors should be calibrated accurately WITHOUT the Infinitec splitter, or Infitec color filter. To do this I recommend at least a pair of Radiance 2020 (9x9x9 3D LUT) units, and you might even spring for a pair of Radiance 2123 (17x17x17 3D LUT), making sure the light output for white is as nearly the same in the two projectors as possible, and of course the black level, Gamma, Grayscale and 3D LUT are calibrated as accurately as possible.
For normal use the Radiance would go after the Infitec splitter in front of each projector. So for calibration you would only need to make sure the color filter in teh projectors is out of the light path.
This approach should give you a very accurate colorimetry for both 2D and 3D.