GH2 Panning in 24P

H

Heartfelt

Well-known member
I have done some pans and slides that in some instances were ok and in other instances, stuttered badly. Can anyone help me understand hat may be going on and how to prevent this?
Thanks!
 
24P in pal areas where i am is a nasty stuttery shutter speed,i always understood ntsa 24P was better but have you tried 30P,i use pal 25P the pal equivalent ,its HBR 24 mbps like 24P but in an interlaced wrapper.
 
Heartfelt said:
I have done some pans and slides that in some instances were ok and in other instances, stuttered badly. Can anyone help me understand hat may be going on and how to prevent this?
Thanks!
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The reason Peter Jackson is shooting the Hobbit in 48p.
That shuddering comes with the cinematic frame rate.
 
It's 100% related to lateral speed (for a dolly) and head speed on a pan. Rolling shutter and frame stutter are both artifacts from the same physical action on the camera. Experiment and discover what works with your camera.
 
Pans in 24p tend to stutter. That's just the nature of the beast. With that said, there are two basic ways to make the stutter/strobe effect less noticeable:

1. Pan more slowly.

2. Try lowering the shutter speed to introduce more motion blur. 1/40 sec. usually looks pretty good, but I have sometimes gotten acceptable results going as low as 1/30.

Could you post some of the problematic footage?
 
As far as the gh2 is concerned, shoot at 1/40 shutter speed.
Motion performance will then be comparable to normal 24 cadence on cinema cameras
 
Sage said:
As far as the gh2 is concerned, shoot at 1/40 shutter speed.
Motion performance will then be comparable to normal 24 cadence on cinema cameras
Click to expand...

-And, it shouldn't go without mention that hacking the camera to Intra or low Gop will result in a more organic flow of detail.
 
Crazy thought: make sure you've turned less stabilisation off if you're shooting from a tripod. It does weird things.

You've likely done this already, but it's one of those things I find myself forgetting every now and then and I figure hey, if I can be that thick-skulled… :happy:
 
Heartfelt said:
So it is the nature of 24P and I should shoot higher?
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The ASC manual says it should take an object a minimum of 5 seconds to cross the FOV. Actually it has some really fancy calculation charts that basically boil down to that number. That's for 35mm film, for cinema scope I think it's 7 seconds. Now we aren't shooting 35mm film, but in general terms the rule still holds.
 
gonzo_entertainment said:
The ASC manual says it should take an object a minimum of 5 seconds to cross the FOV. Actually it has some really fancy calculation charts that basically boil down to that number. That's for 35mm film, for cinema scope I think it's 7 seconds. Now we aren't shooting 35mm film, but in general terms the rule still holds.
Click to expand...

+1
 
Thanks all. I am shooting tonight and will try to slow things down. I am using a slider and crane and shooting a high pressure gas cylinder and welding equipment on a black background.
 
If your using the GH3 consider some 40% slomo, but be sure to review the footage with an eye for strobing.

Slomo smoothes most moves, & pan speeds will be quicker, but I'm not sharp enough to calculate by how much.
 
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