in retards to 24p shooting...

Cephalectomy

Cephalectomy

Active member
ok, sorry for more newb questions but since I don't have my wonderful dvx100b yet (it's been on back order for 4 weeks, grrrrr, i hate waiting) I'm still trying to learn as much as I can through reading, so...i have two questions about recording in 24p....

1.) I know people say there's a strobing problem when you pan too quickly with that setting, what I want to know is if i can't pan fast, what about action within the scene, can the action still be fast or will that cause problems too?

and

2.) Since 24p causes this strobing problem, and film runs at 24 fps, why is 24 fps on a dvx choppy yet when you watch movies, there's plenty with fast pans and action yet no choppy movement.

Thanks for your help, sorry if these are stupid questions :)
 
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Cephalectomy said:
ok, sorry for more newb questions but since I don't have my wonderful dvx100b yet (it's been on back order for 4 weeks, grrrrr, i hate waiting) I'm still trying to learn as much as I can through reading, so...i have two questions about recording in 24p....

1.) I know people say there's a strobing problem when you pan too quickly with that setting, what I want to know is if i can't pan fast, what about action within the scene, can the action still be fast or will that cause problems too?

and

2.) Since 24p causes this strobing problem, and film runs at 24 fps, why is 24 fps on a dvx choppy yet when you watch movies, there's plenty with fast pans and action yet no choppy movement.

Thanks for your help, sorry if these are stupid questions :)
Click to expand...

"In Retards to 24p shooting"...

This is one of the funniest mispellings I've heard for some time!!

I'm a fast typer myself, so i usually have lots of grammatical mistakes when writting, but this one is great, Cephalectomy!!!

As for your questions, I think I can answer them:

The difference between the 24p you see at home and in the theatre is that in the movies, the film is projected at 48p, or, more correctly, with repeated frame in order to smooth out the action. Someone explained this a lot better in the HVX 200 Technical forum, in a thread with the name "48P or 24P?"- check it out!
 
haha yeah, the "retards" thing was definitely a poor typing error on my behalf being 5:30am, haha, but when i ame back and noticed it i couldn't help but laugh myself, i tried to fix it but it only fixes at the top of the actual msg and not in the actual header for the forum. haha, and i'll look for that thread, thanks :)
 
I know people say there's a strobing problem when you pan too quickly with that setting, what I want to know is if i can't pan fast, what about action within the scene, can the action still be fast or will that cause problems too?
Click to expand...

The action within the scene can most definetley be fast. I recommend learning how the shutter speeds work and use them to your advantage.

Since 24p causes this strobing problem, and film runs at 24 fps, why is 24 fps on a dvx choppy yet when you watch movies, there's plenty with fast pans and action yet no choppy movement.
Click to expand...

Well there are some tricks. First being when you place a subject or action smack in the centre of the framing and the pan follows that object, the strobing is less noticable on a fast pan.

I always see strobing in movies shot 24fps.
 
The shutter speed is going to be one of your biggest friends in reducing strobing. I almost always shoot with mine at 1/48th, unless circumstances warrant otherwise. Your camera moves are also a big factor. that's where clever use of a dolly and wise camera movement can come in handy.
 
Indeed film projectors project with a shutter such that each frame is shown twice. This is not to smooth the motion but to reduce the amount of flicker the eye woudl pick up on.

23.98 timeline of DVX footage is the same as standard 24fps film stobing.
 
shutter speed for sure will be a huge asset. I also recommend capturing (referring to Apple's 'Final Cut Pro') in the 'advanced pulldown' mode (2:3:3:2).
 
Cephalectomy said:
I know people say there's a strobing problem when you pan too quickly with that setting
Click to expand...

I believe that an object must take 7 seconds to cross the screen while panning, for it to appear smooth.

Of course, pan-velocity is dependent on zoom-indice. There is a great chart in Barry Green's "DVX Book" (Fiercely Independent Films, Las Vegas), on p. 22. You can also check the American Cinematographer handbook.
 
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