Originally Posted by David Jimerson (Post 614547)

1) "Blend Fields": this is (more or less) taking Field 1 and Field 2, pushing them together, and blurring out any interlace artifact (the comb effect) caused by the different positions of any moving objects. If there is little motion, this can be an effective method, because it will preserve more vertical resolution. But if there's a lot of motion, it will produce undesirable results, with funky movement and ghost-like auras around anything moving.

2) "Interpolate Fields": this is (again, more or less) taking every other field (Fields 1, 3, 5, 7, 9, etc.), throwing away the rest, and then making (interpolating) full frames out of the remaining fields. Because the full frames will be comprised of only single moments in time, instead of two moments in time, there's no motion to reconcile within the individual frames, and you won't get the motion artifacting or ghosting. But because the frame is a whole picture being made out of the information from only half a frame, there can be a loss of up to half of the vertical resolution. But, other than that, it's good 30p, because it will be full pictures taken every 1/30th of a second, just as 30p should be.