why does 24p "Strobe" ?

B

blazingoat

Carbonite Member
Okay, this is something I can't wrap my head around.

I have been experimenting with burning 24p DVD's from footage shot with my DVX in 24pa mode. (Cut in Premiere, and encoded as 24 frame DVD with Encore).

When played back on an NTSC tv, the image seems to be more stroboscopic than if I play back the same footage from the camera through an SVIDEO cable to the same NTSC monitor.

The effect seems to be most noticable with handheld footage. Regardless of whethere the footage is on a DVD or coming right of the tape, I'm begining to notice that the DVX 24p is REALLY strobey. Why doesn't a 35mm transfer to 24p dvd strobe like this?
 
If the DVD's pulldown cadence is any different, it's because you're editing wrong or exporting to DVD wrong or something. I've seen 24p DVDs side by side with 2:3 pulldown from the dvx, and there's no difference.

Also, how many people shoot 35mm film with a 250mm lens with an infinite DoF? Exactly. It's mostly a matter of shooting conditions. If you stick to wide angle for motion shots (especially handheld....never zoom at ALL with handheld unless you have a shoulder mount or something) and use a tripod for close ups, you'll be set.
 
Policar said:
If the DVD's pulldown cadence is any different, it's because you're editing wrong or exporting to DVD wrong or something. I've seen 24p DVDs side by side with 2:3 pulldown from the dvx, and there's no difference.

Also, how many people shoot 35mm film with a 250mm lens with an infinite DoF? Exactly. It's mostly a matter of shooting conditions. If you stick to wide angle for motion shots (especially handheld....never zoom at ALL with handheld unless you have a shoulder mount or something) and use a tripod for close ups, you'll be set.
Click to expand...

So exactly how are you saying is the way to avoid strobing on your dvd's made from 24pa?
 
Policar is correct, it is the shooting style difference that would account for most, if not all of the difference. A camera op that is used to shooting film would never make the handling mistakes that an inexperienced DV shooter would.
 
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