The little color dots you're seeing and possibly the vertical color lines may be artifacts from the focus pixels. It was an interesting journey dealing with focus pixels. I ended up mapping all of the focus pixels for the affected cameras starting with the EOSM and @dmilligan coded a fix into MLVFS. I assume that @AWPStar is using the same algorithm in MLVProducer. Basically to hide the focus pixels the surrounding pixels need to be averaged. Dual ISO was a problem because of the alternating horizontal lines of light and dark so the averaging is only done on the pixels in the horizontal axis. This usually works fine until you get into fine details that are one pixel wide. That might be what's causing those vertically colored lines.
Yeah I read that few days ago, because that was the very first problem that popped up in testing RAW. Great job done, thank you!
BTW need to compare to 720 h264 for color moire... Because 1080 h264 didn't have that.
What is unique about the EOSM in crop mode is that you can use C-mount lenses. There's a bunch of cheap fast lenses out there though the quality isn't exactly fantastic. On the plus side crappy lenses do tame moiré. There are some nice quality vintage C-mount lenses made for 16mm but it seems that collectors are bidding up the prices on ebay.
I did some quick search for C-mount lens on ebay and Aliexpress, but most of them are noname 25mm+ (160mm equivalent in crop mode). And I need something in 35-80mm eq. range. Also looked for vintage USSR fisheyes, but they are very rare or not fast enough.
Looks like I'll have continue to shoot in flat h264

P.S. did compare test

in fact I can see red and blue cast on 720 h264 at the same place like in RAW, but codec's blur hides it (plus flat cinestyle profile) and it becomes not so noticeable.
P.P.S. yeah... mv1080 would solve lot of issues...
Just one more thought:
I read somewhere that mv1080 mode turns on with beginning h264 recording. <stupid idea>CPU probably won't handle it, but still, what if we set lowest h264 bitrate possible (CBR 0.1x or VBR Qscale 16, may be something even lower is possible) and write both h264 + RAW? (we can also grab audio track from h264)</stupid idea>