New to the capabilities of the DVX100B

W

WonJohnSoup

Active member
Hi, I'm thinking about picking up this camera after some research. I'm mostly a still photographer so some of the mysteries of frame rates and audio still alude me. Anyways, I'm mostly into filming martial arts stuff. I understand 22fps is popular for this. Now, I know the HVX200 can shoot at a native 22p, but is there anything I can do with the DVX100B to mimic this look? The price difference is just so high I'd like to avoid spending extra on the camera and instead put it into production stuff like breakaway tables, etc.

So yeah, basically, can your average person on the street really tell the difference if I just tell Adobe Premiere to splice out two frames in post-processing versus shooting at 22p to begin with? Thanks a ton for any help.
 
Firstly, I think you mean 24p shooting - 24fps. The DVX is very capable of doing that, and it is the reason behind the digital video revolution for the prosumer masses. The HVX is just a step up in the direction that it uses solid state media and it's hi def, along with the ability to record at variable framerates. However, the DVX holds it's own really well
 
hi. i don't think you need HVX for your needs. 100b is good enough for you.
100b will not give you 24p, cause its made for european (PAL) market. for that option (which i think you also dont need) you need 100a camera made for US (NTSC) market

m
 
100b will not give you 24p said:
hi where did you get this information? dvx100bp is NTSC which records 24p and 24pa and for dvx100be is PAL it records 25p and 25pa. dvx100b is the 3rd update of the famous dvx from panasonic.
Click to expand...
 
what WonJohnSoup is saying, or asking, is can the DVX mimic how they tend to shoot fight scenes.

this is where the 22fps comes in. shoot a fight scene at a touch lower frame rate and play it back at 24fps, and you have a snappy-er, faster, more exciting fight.

unfortunately the answer is no. the NTSC 100B, shoots in 60i, 30p, and 24p.

if shooting with the HVX is not an option, you can always play around with shooting with the DVX in 24pa, and speed it up in your editing timeline a bit. like 110% or so. but be careful, you don't want it looking like Charlie Chaplin, or Benny Hill.

Also, don't splice out frames. the movement won't be smooth, or quicker. just choppy.
 
Last edited:
I would say you can have some good results by just speeding up your timeline footage a tad, as suggested. Speeding up footage is nowhere near are difficult as slowing it down in post.
 
Thanx guys, especially to Shibuya and William. That's exactly what I was looking for. Two last questions, would it matter much if I shot in 24p normal versus 24pa and then just speeding up the timeline in Premiere?

The reason I ask is because I was planning to also shoot at 60i for some sequences and then slowing it down in the same timeline as mentioned on this board for slow-mo shots. Since I'm not too clear as to what all this pull-down business means I just imagined it'd be simpler for me to shoot at 24p as normal, import it to Premiere in the normal 30fps rate and then just do speed-ups and slow-downs with the simple timeline speed adjustments.

The other and perhaps more important question is that isn't speeding up the footage in the timeline to say, 110%, noticably different from dropping some frames? As I understand it, if an action over the course of one second was shot at 22fps, it would still take that action one second to complete on screen, same as if you shot it at 24fps or 30fps. However, if you take one second of 24p footage and then speed it up in the timeline, then it would only take, say 0.8 seconds to complete on screen and that would be the tipoff to the viewer that the footage was sped up. The difference is that the choppy transition from frame to frame of footage shot at a slower fps is what gives the illusion of speedup. I imagine this would be most noticible on the physics of the rate of gravity. Are these assumptions correct?

Again, I appreciate it. I'll almost certainly experiment as I normally do for these things but you guys are great and helping me a ton with the legwork!
 
Last edited:
as far as your question about the frames dropped or speed change.

if you shoot less than 24 frames a sec, and put the footage intoa 24 fps timeline, it's going to play back 24 frames per second, making your 22 or whatever play faster. since you started with less frames to build one second of footage, your timeline being set for 24, it is stealing the missing frames of action to make it 24 per second.

I'm starting to feel like I'm talking in circles, I hope you get what I'm trying to say.

when a camera shoots 22 frames a second, or any frame rate, they are evenly spaced over that second, for the sake of the argument anyway.

so cutting 2 random frames will just make your footage herky jerky.

shoot some test footage to see how fast you want your actors to move, and play around with speeding it up. you might find that having them move just a bi slow, and speeding up to 117% is your magic formula. but don't have them go to slow, the results would be very comedic.
 
I searched and searched on my DVX for the 22P frame rate, and the stupid thing kept wanting to record in 24P. But I taught it a lesson, I beat the livin snot out of the camera, now it randomly records in 22P. Thanks Shibuya for setting my DVX straight, we sure taught it a lesson!
 
1.- ok so we all know we can not undercrank de DVX below 24p.

2.- Premiere will work best with 24p"A" as a matter of fact 1.5 and up comes with a "Panasonic" preset and it will only take Progressive Advanced.

3.- I think what you wanna achieve is that fast paced stroby look as seen on some fights on Gladiator, etc. you can get that by using a high shutter speed, might have to play with your lighting a lil bit.

4.- for slow mo shoot 60i right click on the timelime and reduce the speed to suit your needs ie 60%.


you can still convert all of this to HD in post hope that helps.
 
Last edited:
Wow, that helped a ton. So to clarify further, if I want to do both speedup and slowdowns in the same project, I should shoot all my footage in 24pa EXCEPT for the footage I intend to slow down in which case I use 60i. I'm playing with Premiere CS3 right now. When I render as a movie should I render as 23.976 (as I understand it all TVs and computer monitors will "flicker" at 29.97fps)?

And maybe it's just the transition from 60i (I've been practicing on a friend's Sony PD150) to 24p, but I was trying some moves in front of my camera and honestly, I don't think my stunt friends and I will need any speed up in post. I recall working on several film projects before where they asked all the stunt fighters to slow down to what was probably at most only half the speed we were all capable of. I thought it was just for safety reasons, but is this the true reason? Does 24p simply not catch even moderately quick motion?

And oh, I would like to try out the high-shutter stroboscopic effect ala 300 and Bourne when I think it'll look good, but for the most part I'd like to try to get that old 80's-90's HK kung fu look. =) I'm guessing they shot that stuff around only 1/120th?
 
-

kdawg,

your hooked on phonics is going to arrive a little later than I expected because of the holidays, but please use it well when it does show. then you can read through my post again and see that nowhere did I say the DVX can shoot 22fps.

read into wonjohnsoup's post and see I was answering his questions about cutting out 2 frames to achieve faster moving action.

good luck.
 
the reasons behind shooting at lower frame rates to play back faster in 24, and slower movements, I'm sure safety in part, but mostly to make it more impressive looking.

the strobing I think you are talking about is a higher shutter speed.
 
Sorry for the bad grammar
it seems that when you slow down 24p you are only working with half as many frames as 60i thus the latter looking smoother.

I can't really tell you what Shutter speed setting I have different scene files.
 
You must log in or register to reply here.
Back
Top