Re: CMOS and rolling shutter - solution?

In the comparison between the HVX200 and the EX1, you can't say that the "4:2:2" of the HVX200 is better than the "4:2:0" of the EX1.

You were concerned about chromakey, so let's look at the absolute chroma resolution of the two cameras.

The HVX200 has a luma resolution of 960x540. 4:2:2 color sampling gives it a chroma resolution of 480x540.

The EX1 has a luma resolution of 1920x1080 (full raster sensor). 4:2:0 color sampling gives it a chroma resolution of 960x540, i.e. twice the chroma resolution of the HVX200.

In practice, both cameras do chroma interpolation (and the HVX200 does a pretty amazing job of quadrupling its recorded CCD resolution to get to 1920x1080 also).

For chromakey work, you can also use the HD-SDI spigot on the back of the EX1. This has full SMPTE 10-bit 4:2:2 1920x1080 with no padded bits, interpolation or anything else.