What settings would you use for this specifis shot ?

[ernestBC]

Hi fellow filmmakers,

I'm writing because I have a little cinematography challenge on the shooting of a make-up brushes advertising clip, and I'm wondering whether you could give me a piece of advice on what settings I ought to use. I'm not a trained DOP, I mostly direct but I'm getting to know the skills of my 7D which I sometimes have to operate myself.

I'd like to get slow-motion images of the brushes falling vertically before the lens, spinning and bouncing on the ground in full shot and medium closeup (sort of this in video slow-motion : [url="http://vimeo.com/10109873%29"]http://vimeo.com/10109873)[/url]. In order to get a sharp enough focus, I have to set the shutter speed high, but I loose light and must therefore increase the iso. The result as you've already guessed is too much noise. I'm using a 7d at 60 fps and two kino lights in a studio, and then I slow the images down using twixtor in final cut.

- What settings would you use in order to do this shot ? The brushes don't have to be perfectly in focus I guess, but the image should be clean enough.
- Do I really have to increase the shutter speed or should I stay around 1/60 ? Could I go lower ?

I look forward to reading your suggestions,
Thanks !
Ernest

[Zach]

[quote name='ernestBC' timestamp='1348347619' post='18926']
Hi fellow filmmakers,

I'm writing because I have a little cinematography challenge on the shooting of a make-up brushes advertising clip, and I'm wondering whether you could give me a piece of advice on what settings I ought to use. I'm not a trained DOP, I mostly direct but I'm getting to know the skills of my 7D which I sometimes have to operate myself.

I'd like to get slow-motion images of the brushes falling vertically before the lens, spinning and bouncing on the ground in full shot and medium closeup (sort of this in video slow-motion : [url="http://vimeo.com/10109873%29"]http://vimeo.com/10109873)[/url]. In order to get a sharp enough focus, I have to set the shutter speed high, but I loose light and must therefore increase the iso. The result as you've already guessed is too much noise. I'm using a 7d at 60 fps and two kino lights in a studio, and then I slow the images down using twixtor in final cut.

- What settings would you use in order to do this shot ? The brushes don't have to be perfectly in focus I guess, but the image should be clean enough.
- Do I really have to increase the shutter speed or should I stay around 1/60 ? Could I go lower ?

I look forward to reading your suggestions,
Thanks !
Ernest
[/quote]

At 60fps you should be around 1/120. What lens are you using? That should be more than enough light for this situation without having to bump up the ISO

[sanveer]

Pushing your ISO higher, for high speed videos, isn't exactly a great idea. I agree with Zach. You, probably, need a faster lens.

[sanveer]

[quote name='ernestBC' timestamp='1348347619' post='18926']
Hi fellow filmmakers,

I'd like to get slow-motion images of the brushes falling vertically before the lens, spinning and bouncing on the ground in full shot and medium closeup (sort of this in video slow-motion : [url="http://vimeo.com/10109873%29"]http://vimeo.com/10109873)[/url]. In order to get a sharp enough focus, I have to set the shutter speed high, but I loose light and must therefore increase the iso. The result as you've already guessed is too much noise. I'm using a 7d at 60 fps and two kino lights in a studio, and then I slow the images down using twixtor in final cut.

- What settings would you use in order to do this shot ? The brushes don't have to be perfectly in focus I guess, but the image should be clean enough.
- Do I really have to increase the shutter speed or should I stay around 1/60 ? Could I go lower ?

I look forward to reading your suggestions,
Thanks !
Ernest
[/quote]


You didn't mention the ISO you're shooting at. Or the shutter speed. Also, Canon DSLR videos are already so soft. Why would you wanna soft focus it?

[Axel]

Owner of the 7D, I advise you not to use 720p at all. Use 1080@24p only. Shoot with the shortest shutter speed to eliminate motion blur - as best as you can (Twixtor motion blur cannot be rendered convincingly out of existing motion blur, there will be a jelly-effect, also, the powder will only look brilliant with sharp particles, you probably will have to apply sharpening in post). Use *lights* to get proper exposure. Lowest Iso. Close the aperture enough to get the whole brushes completely sharp, blur only the background. Make test shots to see how Twixtor handles dust clouds and the elasticity of the hairs as the brushes touch ground.

[XXX]

Rent a FS700 and charge it to the client. Other than that you might even be better of with a non dslr camera that can do 1080/60p, like the RX100 and try around. Other than that - what Axel said.