Originally Posted by sspears
One thing I had not thought about was the display. As it stands today, a single chip 1920x1080p DLP produces the highest spatial resolution possible. A 3-chip DLP has lower spatial, due to panel alignment, but higher temporal resolution. LCOS has lower spatial and temporal resolution.

A 3-chip is great because you don't have to deal with color wheel issues. Its bad becuase panel misalignment is really poor on all of the consumer level 3-chip displays. (LCOS and DLP) A 3-chip DCinema DLP can be aligned, not perfect, but MUCH better than a a consumer display.

The lens is another factor. Does it have uniform foucs? How bad is the chromatic abberation?

Is your display 1920x1080 native?

All of these will play a role in what you can resolve.

The video processor also plays a role. Mark, have you tried bypassing the Radiance, just to ensure it is not doing any damage? I have not used one, so I don't know what it may or may not do.

I'm currently using a 1-chip DLP - (Projection Design Cineo 3+ 1080) but am also evaluating replacements including their 3-chip Helios. My current PJ's lens has no chromattic abberation on my screen, uniform focus with all pixels resolved. Even with the ISCO III lens in use there's only slight chromatic abberation at the extreme edges. I've demoed the PD Optix and it's even better - they hand pick and use the lens which have superior characteristics and I'll also be keeping a very close eye on panel alignment on the 3-chip.

As for the Radiance, if it's resolving the chroma test patterns correctly with the Panasonic vs the Sony I guess it's not interfering?

Cheers,

Mark

My Music : My Cinema