The Red motion mount. Didn't you read about it? Red bought the tessive time filter tech and made a mount replacement with the filter built in, you do lose a bit of light sensitivity, but it seems that Red has accepted this as their solution for rolling shutter for the near future.
$4,500 bucks. Ok, if you can afford a Dragon I guess what's another 4,500 bucks but it seems kinda pricey to me.
