Originally Posted by Dan Miller
The lens is the same (although hand chosen on the 11), but optics ABSOLUTELY affect CR. That's why we pay so much for it.
I know the optics will effect ANSI CR, but how does it change on/off CR?
At any rate, the optics can only degrade the native CR of the DMD, not improve it. The degradation will be less with good optics. According to Robert, TI only claims ~30% improvement with DC4, but Jason measured about 300% improvement from 11S1/DC3 (3642:1 in highest CR mode) vs 11S2/DC4 (~12k:1).
How can such a large discrepency be explained? Here some thoughts off the top of my head:
- The 11S1 measurement is actually much higher than what Jason measured (unlikely, as the 11S1 numbers are in-line with the Jason's numbers for the Sharp 20K and Benq W10000 and with other 11S1 reviews.)
- The 11S2 measurement is actually lower than what Jason measured (unknown, there are no other published reviews of the 11S2 with measurements to compare).
- TI's 30% improvement claim is extremely conservative (unlikely, as I would think that TI PR would be shouting to the world if they doubled CR).
- The optics on the 11S1 are a lot worse than the 11S2 and thus the improvement is due to a huge improvement in optics (Dan already eliminated this).
- The 11S2 sample Jason received is an extreme outlier. This means that only a very few units can match the level of performance Jason measured and that the perormance improvement of the mean will be significantly less. If this is the case, if you are considering the 11S2, you better grab Jason's sample ASAP.
Dan - I know that you're limited in discussing technical details, but can you explain in a general way how such a huge improvement was achieved?