stationary person in focus, moving blurred?

Ralph nixon

Well-known member
I want to get a shot where my subject is sitting alone on a bench and people and cars are moving around him in blurred motion. Is there a way I can do this if I have the right shutter and frame rate settings and I have my subject sit perfectly still? Any help would be gratly appreciated. I'm using a dvx100b.
 
It sounds like your trying to achieve a shallow depth of field. So for the most out of focus background, zoom all the way to Z99, then open your iris up to 2.0 or 2.8. If your outside, you will most likely have to use the ND 1/64. Depending on how bright it is, you might have to go with a faster shutter speed as well. Since your zoomed all the way in your going to need to back up obviously so you can frame the shot the way you want it. But since your outside it shouldnt be that much of a problem. Then all thats left is to focus on your subject.
 
I don't think he's asking about DOF here. The effects he's talking about seems to be the one where the subject is standing still and everyone else is moving at a different speed (in this case they're also blurred out). I would like to know how this is done as well.
 
This is the way i've seen it done on garden state. You just film for about
10min and have your subject stay very still. then you speed up the footage.

when you do this make sure your shutter is not to high. and thats it,

hope that helps
 
jade8472 said:
I don't think he's asking about DOF here. The effects he's talking about seems to be the one where the subject is standing still and everyone else is moving at a different speed (in this case they're also blurred out). I would like to know how this is done as well.

That's what I thought at first, but since he didn't specifically mention anything about a different speed, I thought I'd go ahead and throw out the whole DOF thing.
 
I'm imagining a really slow shutter speed, closing down the iris a bit, if it gets too shallow a depth of field, ND 64, or throw on additional filters then in post speed things up a little. Make sure it ain't too windy because hair flying in the wind on the still subject makes the effect less impressive. Oh tell the subject to try and NOT blink. Hahha!

makes me want to try it.

good luck
 
i would most likely do it in after effects by using one of the following methods:

1. (requires a green screen) Shoot your subject on a green screen, then record the same background in various differnt shutter speeds etc to achieve the background look you are aiming for, then in after effects drop the background layers below your green screen layer, key out the green arrange, etc. You would also apply motion fast blur's in differnt directions depending on what you were aiming for i suppose.

2. The other way that came to my mind would be filming with the subject in the shot as intended (this does not need a green screen) just film him/her sitting then using mattes and layers in after effects go from there. (matte/mask the subject first then duplicate that layer, remove the masks and put it underneith then apply the effects)

These are all just quick spurts that i thought of while sitting here at work, im not really even sure if thats what the post starter wants...
 
OR, you could just crank down your shutter speed to get the blur. If you're shooting on an HVX, you could shoot at maybe 12fps with a slow shutter speed, and you'll get exactly what you want
 
Shoot at the lowest shutter speed possible (eg: 1/24th if your using 24 FPS). Your still subject should remain sharp (if they are still). Your moving subjects should be blurred up nicely (if they are moving).

And yes a shallower DOF will enhace the look also.
 
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