Policar said:John Moore, rack framerates aren't easy. You need to open the aperture at the same rate you shift up the framerate, so you'd need an extra stop to shoot 48fps, and maybe a stop and a half to shoot 60fps. Plus, programming the camera to do that can't be simple, either.
You'd have to open the aperture AS you overcrank so either the camera has to automatically do that, or you have to use a follow focus but attatch the gear to the aperture ring...except that only PL mount lenses let you do that. So it makes sense they left out this feature. Plus, you can totally fake it in post anyhow.
Oh, and my magic price fairies tell me they're shooting for between $25,000-$75,000.
Policar,
I see no reason to not have ramping... lock the shutter speed to 1/60 (for example) and then there is no need to alter the iris. On a film camera this isn't possible because exposure depends on framerate, however, this ain't film.
I'm kinda thinking that 4K is excessive.
What does everyone plan on doing with a 4k film exactly!?!
Stick with 2K and save teh cash IMO.