Originally Posted by Lasalle
I think its clear that the Christie's benchmark numbers are well down the curve of diminishing returns. That does not mean it is not visibly the best, but few have compared it to another high on/off, high ANSI projector. For example if you take a Barco THOR and just increase the ANSI from 1000+:1 to 1500+:1 the improvement will be minimal, but if you take its 2000:1 (or HC 5000:1) on/off to 30,000:1 its magic , depth, color pop, etc. Conversely if you take a good LCOS projector and increase its on/off from 30,000:1 to 1,000,000 leaving ANSI at 300:1, again marginal improvement, but increase ANSI to 1000:1 and again magic. The move from the current (non-Christie) projectors to a 30,000:1 on/off and ANSI 950:1 is OLED dramatic. Given equal lumens I don't believe its possible for the eye to perceive the same level of improvement beyond that, better yes as dramatic doubtful. Just my opinion.
Yes and no
As far as contrast performance and hence dynamic range and black levels are concerned the ANSI contrast measurement is in itself not relevant to almost all actual video content. ANSI is 50% ADL and 99.9% of video content typically falls below this.
The reason why there is such good performance with a projector that has both high ANSI and comparatively high ON/OFF contrast measurements is not because the ANSI is high, but because the measurements IN-BETWEEN
the ANSI and ON/OFF will be high, which is in fact wherein almost all video content typically resides.
This is why, with respect to this CHRISTIE projector, and in fact all projectors that I will be reviewing, I will be measuring what is the ADL contrast measurements from 1% - 20% as these are in fact the most relevant and hence important measurements.
You can most certainly have a projector with over 1,000:1 ANSI that looks terrible if the 5% - 20% ADL contrast is comparatively low.
That said, however, you are right that there are diminishing returns, but as good as is the video performance regarding the projector to which you refer, this Christie projector is without a doubt a significant step up in performance and in more ways than one. However, it is more expensive, so you basically get what you pay for in this regard. But I cannot agree that there is not much difference in performance between the two. Sorry.
I also disagree that an increase in ON/OFF from 30,000:1 to 1,000,000 leaving ANSI at 300:1 will produce only a marginal improvement. This will indubitably increase significantly what is the 1% - 10% ADL contrast which is wherein resides the majority of video content.
And just to be clear, as good as are the perceived black levels with that other projector, the black levels with this Christie are superior; where the most difference will be noticeable with fade-to-black and just above black, namely 0 - 1% ADL video content.
That said, however, you are absolutely right there are diminishing returns, which is to be expected. But the performance differences are not just with respect to contrast and black levels. There is also a step up in performance in multiple other aspects of video performance as well.
But just to be clear, these are both very high-end and high performance projectors we are talking about here, which is akin to debating what are the comparative performances of supercars versus hypercars