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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Need Help - Tons of motion blur on very minimal movement Red MX footage

Alison Parker said:
We are reshooting the close ups today with a 5D but maybe we'll try the Red also on a higher shutter..
Click to expand...

Ouch having to go 5D. Can you post some frames from the same camera from a different shoot you mentioned? THis looks like normal motion blur.

What was the lighting, tungsten?

David
 
hey guys, just wanted to update those were are interested in our motion blur issue.

We did a reshoot of just the close ups on Wednesday, using our Red Mx again and a 5D as a backup. We recreated the same frame/shutter speed etc and recording a couple takes on both cameras. Same motion blur happened on BOTH cameras.

So I GUESS this guy just moves incredibly fast! It still seems unfathomable to me, but I'm not that technical so oh well.

We continued to shoot with the Red, experimenting with different shutter speeds, eventually settling on 1/100 (i believe).. but even then we had motion blur..

The last couple shots however, instead of just a lock shot, the camera operator moved the camera around, panning and tilting quite a bit, and those shots were money. Seems there's no problem with motion blur when the camera is moving a lot to compensate.

So that's that I guess! Thoughts?
 
Gunleik Groven said:
That sounds about right.

Motionblur ain't bad btw... Only if you want to export stills.
Click to expand...

it was bad in this situation. i found his eyes to be the most distracting.
 
Then his eys would need to be focused, if you wanted it all sharp...

No bad on you, but there is a relation here. Another option is to do what you did, shoot at higher shutter, but then you lose the filmic feel...

Filmic is actually quite stuttery and blured... -:))
 
Alison Parker said:
hey guys, just wanted to update those were are interested in our motion blur issue.

We did a reshoot of just the close ups on Wednesday, using our Red Mx again and a 5D as a backup. We recreated the same frame/shutter speed etc and recording a couple takes on both cameras. Same motion blur happened on BOTH cameras.

So I GUESS this guy just moves incredibly fast! It still seems unfathomable to me, but I'm not that technical so oh well.

We continued to shoot with the Red, experimenting with different shutter speeds, eventually settling on 1/100 (i believe).. but even then we had motion blur..

The last couple shots however, instead of just a lock shot, the camera operator moved the camera around, panning and tilting quite a bit, and those shots were money. Seems there's no problem with motion blur when the camera is moving a lot to compensate.

So that's that I guess! Thoughts?
Click to expand...

This is why I took a studied guess that you'd need to be shooting at 1/125 shutter to get something you'd like. It's not the speed the person is moving, it's his distance across the frame in a given time. Make the frame larger (i.e. shoot wider) and the problem is less pronounced. Zoom in tighter and the problem is more pronounced.

Think of cinema fight sequences. The only times you see this are when:

1. The action is zoomed in and it's shot in slow motion
2. The action is zoomed in and it's shot with VERY fast shutter speeds
3. It's shot wide.

Otherwise you'd have exactly the same mess that you see in your shoot here.

I cut my teeth as a sports photographer. Covering basketball, football, tennis, volleyball, cheerleading, and other sports with high motion. I still shoot stills and video of volleyball, and I use a 1/250 shutter for volleyball even when I am using a 50mm lens.

I am sorry this has effected your shoot this way, but perhaps a bit of technical study wouldn't be a bad thing for you. That way, you have some idea of what to expect when you draw up your storyboards for a shoot. If you want tight action shots on people moving across the screen rapidly, you're going to need a fast shutter and a LOT more light than you otherwise would.

Best of luck,

-Perrone
 
well, but not really...

You mainly need your operator to move with the most important subject, whateve that is... Eyes. face, lips...

You just have to decide, and shoot for that.

One of the most important skills I have ever seen on set, is for the DP and the direcor to be able to communicate on-set what is the important and what is the less important part of an image.

The otherparts may well be dark and/or blurred...

Changing o a shorter shutter is just not mainly a chosen way, in the productions I have been invoved with...

But they may well be the exceptions.
 
I shot this music video in 25fps 50 shutter speed (very close to 24fps 48shutter). The lens was mostly at f2. This type of video probably suited any extra motion blur coming from Alan rocking back and forth in his chair playing guitar. ALthough I shot the normal motion in 4k, the slow motion is 3k 50fps and 2k 100fps.
I'm planing on doing more video clips so posting problems like this is very much appreciated. Thanks Alison.

http://www.youtube.com/watch?v=4Rk44MX7szE
 
No, I don't think it's necessarily an exception, but if the chosen shot is:

1. Locked down
2. Medium Close
3. Rapidly moving subject
4. Emphasis on the moving subject (as we have here)

Then the options to capture that to the camera are quite limited. This is not steadicam or stabilizer. It's a locked down shot. And it's against a cyc, so the background clearly was not of importance.

There really aren't that many options in a case like this.
 
This is best avoided in-camera of course - but in case it helps someone down the line: you can reduce motionblur on footage by applying something like Re:VisionFX Motion Blur with a negative blur setting.
 
What about checking first the settings of RedCine-X: Under Edit -> Preferences -> Snapshot is Quality set to Full res? Then you can export a R3D-file of single frames and share those with the others in this forum.
 
zak forrest said:
What kind of lights were used Alison?
Click to expand...

sorry I don't actually know, just that there were some kinos and i think some hmi's and those ones that have 9 circular bulbs in 3 rows of 3....

not helpful i'm sure....

i've been watching a lot of music videos and can't find any where there's a locked close up with someone moving their head that fast. so i guess nothing is wrong with the camera, or the settings, it's just the kind of shot we need to avoid.

thanks for the help guys, and it's okay, i got enough other great footage that the music video is still going to be sick. :)
 
is like this?

first file in the hand is very "blur"
in the second file the nut is very "blur"
I made a big mistake, I set the red at 25 fps and shutter to 1 / 25, this might have led to the false "motion blur", I was enabled by mistake in the menu shutter speed RELATIVE MODE and the text was yellow, so 'by mistake I took the shutter to 1 / 25 and I have to remember to put it back to 1 / 50 ....

thanks for your support guys ;)

http://rapidshare.com/files/436921612/A015_C001_12092C_001.R3D
http://rapidshare.com/files/436924056/A016_C001_12092C_001.R3D
 
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