View Full Version : need to shoot slo-mo pennies falling. Advice?
Malcolm Hamilton January 22nd, 2010, 11:42 AM Hi there,
I have an EX-1, and I've not shot anything slo-mo before. But I need to shoot some pennies falling through the air, and I thought a nice slo-mo shot would be nice.
Would someone mind giving me some parameters? I think I should shoot at a very high shutter speed. Is that right?
Should I be in 60i or 30p (or 24p).
Thanks for any tips,
Malcolm
Greg Chisholm January 22nd, 2010, 11:57 AM Hi there,
I have an EX-1, and I've not shot anything slo-mo before. But I need to shoot some pennies falling through the air, and I thought a nice slo-mo shot would be nice.
Would someone mind giving me some parameters? I think I should shoot at a very high shutter speed. Is that right?
Should I be in 60i or 30p (or 24p).
Thanks for any tips,
Malcolm
I would definitely shoot 24p overcranked to 60fps. i would go for a shallow dof which would make it look more interesting(i think), and light it so the pennies pop or glow! you could even use a tempered glass table top and shoot them falling from below in macro.
my 2 cents
Malcolm Hamilton January 22nd, 2010, 12:03 PM thank so much Greg! Yes, I was planning to take the bottom off of one of two tin buckets these pennies are going to be poured into, and set this bucket on a table with a glass top... and shoot from below (I'll leave the other bucket intact, for side and overhead shots). But that's as far as I'd gotten. I love you're suggestions, and will use them. Thanks again,
Malcolm
Brett Sherman January 22nd, 2010, 12:03 PM If you are using Sony SxS cards you could record in Slow Motion. Set the camera for 24P or 30P and then, set the slow speed to 60 fps. If using SDHC cards, record at 720 60P and slow it down in post. You'll probably want to get the shutter speed at 1/120th or higher to reduce blurring.
Even recording 60 fps for a 24P or 30P project isn't that slow. I think the shot you're picturing would require a much faster camera, shooting at 120 fps or higher. But it might work at 60 fps. The only way to know is to do it.
Malcolm Hamilton January 22nd, 2010, 12:07 PM Hi Brett,
Can I shoot in slo-mo, but at 120fp (or even higher)?
I do use SxS cards, by the way.
Cheers, Malcolm
William Santana January 22nd, 2010, 01:04 PM Unfortunately the EX1 can only go down to 60fps.
Sverker Hahn January 22nd, 2010, 01:24 PM Hi Brett,
Can I shoot in slo-mo, but at 120fp (or even higher)?
I do use SxS cards, by the way.
Cheers, Malcolm
You can slow it down more in post. Half speed of 60 fps will be as slow as with 120 fps, not as good but maybe OK. The only way to know is to try.
Malcolm Hamilton January 22nd, 2010, 01:35 PM O.K., I'll add a bit of oomph in editing I guess.
Thanks for your help everyone,
Malcolm
Shaughan Flynn January 22nd, 2010, 02:57 PM FWIW I shot a bunch of change falling and bouncing with a Z1U a few years ago. That was HDV 60i. Dropped it into AE and made it slo-mo and it looked great.
Bo Skelmose January 22nd, 2010, 03:14 PM Shurely record in overcrank 60P on the ex1 - I would use some shutter and edit in premiere CS3 or 4 and use the time warp effect that calculates the missing pictures in between. You have to play a little with the settings as the time warp standard setting is a balance between quality and rendering speed. If you could get a really high speed camera - that would be the best but as the rest of us you probably have to use the stuff you already have.....
Bo
Malcolm Hamilton January 23rd, 2010, 05:21 PM Thanks everyone. And yes, given that I spent all MY change on an EX-1, I'll have to use it.
So: 720p at 60fps
Then play with it in editing. I do own AE, though I've not used it yet. I've been given a bit of advice from other Avid users, though, on how to import this footage with the motion adapter speed set at 100%.
Regards,
Malcolm
Oren Arieli January 23rd, 2010, 06:00 PM I'm not sure if this is what you've visualized, but a fish tank filled with clear mineral oil and backed with some black velvet along with an overhead softbox might make for an interesting look, as the viscosity of the fluid will provide a natural slow-motion to the pennies.
Olof Ekbergh January 23rd, 2010, 09:27 PM I tried shooting falling coins under water a while ago, to simulate slomo.
I had problems with bubbles and the motion did not look right, to much lateral motion as coins rotated, and no bouncing. I imagine oil would be the same.
True HS cam is probably the only way to go. Or stock footage, it may seem expensive, but you know what you get before you spend days trying to get the right look, not to mention rental fees.
Malcolm Hamilton January 25th, 2010, 11:29 AM I'm going through my settings now, and here's what I don't understand (I'm probably mixing up two different things): in Shutter menu, I can go much higher than 1/60. I can go up to 1/2000.
Wouldn't that be the best for a slo-mo shot?
Regards, Malcolm
Olof Ekbergh January 25th, 2010, 11:36 AM Really high shutter speed does nor effecy frames per second, max is 60 with the EXcams.
It will freeze each frame so stills will not be blurry, but that causes the "Private Ryan" effect, sort of strobing, not smooth as motion blur of a 120th second shutter speed (recommended) for 60 fps.
Greg Chisholm January 25th, 2010, 11:54 AM I'm going through my settings now, and here's what I don't understand (I'm probably mixing up two different things): in Shutter menu, I can go much higher than 1/60. I can go up to 1/2000.
Wouldn't that be the best for a slo-mo shot?
Regards, Malcolm
think of it like a still camera... if you shoot at a shutter speed of 1/2000 of a second, you would do that to catch a fast moving object clearly, or you may use such a high shutter speed to control your exposure under extremely bright circumstances to get in the sweet spot of your lens. that's shutter speed.
if you shoot at a rate of 24p or 30p... but you set the slow motion setting in "slow and quick motion" to 60. when you play back the footage recorded at 24/30p the image will play at half the speed or slower. 60fps/24p or 60fps/30p. that's slow and quick motion or frame rate converting.
sorry i am sure someone else can probably state this more simply but i think that's the gist of it.
hope it helps
Greg
Tito Haggardt January 25th, 2010, 01:40 PM i remembered this from some years ago, free from istock
US Coins Falling - Left Side of Screen | Royalty Free Stock Video Footage | iStockphoto.com (http://www.istockphoto.com/file_closeup.php?id=2449858)
aloha
tito
Malcolm Hamilton January 25th, 2010, 03:15 PM Olof and Greg - - thank you. I finally understand.
And Tito, I appreciate the link... I'd checked out some stocks like this, but I have to shoot Canadian coins, so I'm going to have to get the footage myself.
Cheers everyone, Malcolm
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