I calibrated a Vango LED PJ a few months ago, taking readings off the screen from my reference instrument and then with the colorimeter I was using (I think it was the Klein K-10). As I recall, the corrections were quite small, typical for the corrections I have seen when calibrating many other FPs (UHP), which is to say that the LED light source made little, if any, difference to the corrections required.
However, memory is flawed, I didn't save the necessary data, and I wasn't using the D3 in any case, so I have nothing concrete to share.
As I indicated, this is not about belief, faith, or theory. It is about empirical evidence. The next time I measure a LED PJ off the screen, I'll be happy to post how well the D3 PRO's Front Projector mode matches the reference data.
Originally Posted by Citation4444
I sit completely on the other side of the fence as I own a RGB LED driven DLP projector. I'm quite confident the C-6 will measure my RGB LED driven MICO 50 much more accurately than the D3 Pro when facing the screen. The D3 Pro has only one calibration for any front projector and that calibration is not for a LED driven projector. I would like to see Tom show some proof that a single calibration will suffice for these different spectra projectors, and I don't think it can be done. Consequently, I stand firmly with Spectracal for front projector calibrations, and for a few other reasons that are not pertinent to this discussion.