HVX Fast Motion in an Uncompressed 8-bit timeline

Joe Walker

Joe Walker

Well-known member
Alright guys, put your thinking caps on. We shot some fast motion shots for our news station at 12fps (720pN) and now comes the real challenge. We need it to integrate into an Uncompressed 8-bit timeline, since we normally shoot on crappy Beta SX cameras. Better yet, it has to become 4:3 when all said and done. Tell me if I have done this right:

1. I imported the footage down the P2 pipe onto our G-Raid.
2. I brought it into our Uncompressed 8-bit timeline, alongside the BetaSx footage.
3. I scaled it up so the sides become chopped off and it is 4:3 in aspect ratio.
4. I rendered it out. Looks good....damn good.

However, some test shots of slow motion shots I shot, when done the same way, look a tad bit blurry/hazy/kind of like it was slow mo'd in post, even though we overcranked to 60p. Do I need to do something else? Again, this footage has to become broadcast out at an uncompressed 8-bit timeline in 60i (480). Because our station is like a dinosaur, it will have to be layed back to a BetaSx tape.......so have I missed anything, or did I do it right and am being too picky about the slow mo footage? Your advice will be muchas appreciated.

Thanks,
Joe Walker
 
Try using a faster shutter speed when doing the slow motion shots. It will give you less motion blur in each frame, cleaner slow motion.

I shot a lot of Jingle Dress dancers this past year at Powwows. They are fast and moving non-stop. The dresses have fringe of various colors. I wanted to get the details of the cones, fringe, etc. I used a very fast shutter speed, I don't remember right off the bat what it was exactly. But it gave me very beutiful slow motion with very sharp images.
 
1/48th is default. I did notice that 1/60th was a much better slow mo shutter speed setting. 1/120 was too much. I had no idea that shutter speed on a video camera would effect the way slow mo and fast mo shots looked. Of course, I guess shutter speed on a video camera is like shutter angle on a film camera.....right?
 
Sort of, in that both control the amount of time the sensor gets exposed.

So if you're doing 60fps film, at 180-degree shutter, you'd be getting 1/120th exposure time.
 
Whoa...that's deep. Answer me this. If I dropped the DVCPro HD 720p 60fps slow mo shot into my uncompressed 8-bit timeline, does it technically become a downrezzed uncompressed 8-bit slow mo shot? Whatever it is, it looks good, just technically curious. I'm also confused about editing in 23.98 or in 60i. Just writing this is giving me a headache! If my ultimate endgoal is just to spit this stuff back out onto a Beta SX tape for crappy 30 second news image promos, editing in 23.98 is not really going to help me.....right? Furthermore (now my head is really hurting), if I were to say master out a 23.98 DVD or 23.98 tape.....I would need a TV (or monitor) that could show 23.98....right? Any help would be vastly appreciated. This stuff is so deep. I hope I don't sound retarded. Oh well.
 
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