Originally Posted by mlang46
the .95 single chip dlp vs. the .7 3 chip is always going to be sharper.
I know DLP is sharper, but I am just saying most will NOT miss it in movies if you get a JVC with good convergence. Some might miss it in HTPC a tiny bit. I don't really care what the numbers tell me all that much, because I know what my eyes see.
Also, there are focus uniformity issues which some DLP's have, and others might even have a pixel mapping or scaling issue. Even without those 2 factors, at least theoretically speaking the .95 would not always be sharper than all lower ones because throw ratio and other optics issues come into play what also affect sharpness, so it just depends. I have read the TI build documents on DLP projector optics, so I am just quoting TI for the most part (I have had this argument with people before and just referred them to the official TI documentation). I agree if all things are equal the higher chip will always be sharper (and I also agree the Runcos use expensive optics so in that case the higher number will be sharper). However, even the normalized MFR error of the optical assembly can also introduce some variance in DLP models even though convergence is not an issue.
I know about MTF and all that stuff, but even that measurement is highly subjective to some degree due to processing and too many variables, and there are a lot of arguments about how measured sharpness translates to the real world across different content. You cannot actually accurately and mathematically represent any living response that is multi-dimensional with pure mathematics, as you get stuck on "Navier-Stokes" like problems with too many multivariate calculations, and such problems have not yet been truly solved by mathematicians.