If the 30fps you are talking about is all 60 fields, then yes it looks like video. On the other hand if every other field has been dropped, or the video was shot at 30fps progressive, then you really have just 30 frames and it should look much the same as 24fps.(posted 9087 days ago)If you have 60 field/30 frame video you can also keep only every third field -- this gives you 20fps. (Silent films were shot at 16-18fps.)
And you can shoot PAL (25fps). This gives you several interesting possibilities, like slowing the frame rate down to 24fps for editing, then adding 3/2 pulldown to take it to 30fps for NTSC video. This works, but you have to strip off the soundtrack before you do the 3/2 pulldown and then sync it back to the 30fps video.