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Archive 2009 · Sophie, slow motion with Canon 7D

  
 
mike kobal
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p.1 #1 · Sophie, slow motion with Canon 7D


http://www.mikekobal.com/blog/?p=360
tried to embed the video directly into this post, does not work...
mike



Nov 17, 2009 at 01:50 PM
benj
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p.1 #2 · Sophie, slow motion with Canon 7D


Very cool. Was this the result of a lot of testing? If so, what was the biggest thing you learned about the process? Nice lighting btw.

Benj



Nov 17, 2009 at 01:57 PM
dmanky
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p.1 #3 · Sophie, slow motion with Canon 7D


Nicely done - her face remains remarkably stationary given it's only slowed 40-50%


Nov 17, 2009 at 02:00 PM
kakomu
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p.1 #4 · Sophie, slow motion with Canon 7D


dmanky wrote:
Nicely done - her face remains remarkably stationary given it's only slowed 40-50%


At a slower speed, the effects of small movements are far less noticeable.

As an aside, NTSC video is recorded at 60i (60 interlaced frames) allowing for an easy bob deinterlace which transforms it into 60p. From there, you can easily change the frame rate from 60 to something like 30 or 24 (depending on if you're joining it to other sources and what they run at) to make an easy slow motion video from your cheap camcorder. An avisynth script can make this a lossless endeavor to save yourself from compression artifacts.

Edited on Nov 17, 2009 at 02:24 PM · View previous versions



Nov 17, 2009 at 02:12 PM
Hawaii Surfer
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p.1 #5 · Sophie, slow motion with Canon 7D


very cool video. I put it up on my blog. Hope that is ok.. www.pritchardwindsurfing.com


Nov 17, 2009 at 02:15 PM
mike kobal
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p.1 #6 · Sophie, slow motion with Canon 7D


thanks guys. hawaii surfer, thats totally ok. what i learned is that slow motion looks much better when done in aftereffects then in fcp, this was recorded at 60fps. I really got the idea for this clip from the model when we were setting the light and testing the wind, she did not blink or move. took a couple of minutes only to shoot this, we were shooting commercial poses for her pf, have other clips but was somehow drawn to the eerie clip, usually models can't hold still, esp with so much wind in their face


Nov 17, 2009 at 03:06 PM
kakomu
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p.1 #7 · Sophie, slow motion with Canon 7D


mike kobal wrote:
what i learned is that slow motion looks much better when done in aftereffects then in fcp, this was recorded at 60fps.


Are you referring to slow-motion plug-ins or some sort of fake slow motion? "Real" slow motion was achieved by filming a sequence at a fast frame rate and playing it back at a normal frame rate. So, given a movie shot at 24fps, you could achieve half speed by filming at 48fps and playing back at 24 fps. quarter speed can be had by filming at 96fps and playing back at 24fps. Going from 60fps (your source material) and playing back at 24fps, you can achieve a speed that is 40% the speed of normal.

The great thing about digital video, like film, is that the frames are discrete (this is compared to magnetic tape, where it's difficult to extract individual frames and the playback speed is based upon a series of modulated signals). The playback rate is completely arbitrary. A video could be played at 1fps or 1,000,000fps and thankfully, the frame rate can be changed in most digital video formats without touching any of the video frames (a lossless change).

That being said, the slow motion (if properly done) should look the same no matter which post-processing program you use unless it's trying to extrapolate or interpolate between frames...in which case, you'll probably want to avoid such plugins.



Nov 17, 2009 at 03:24 PM
Matt Cope
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p.1 #8 · Sophie, slow motion with Canon 7D


Very cool. Must have a play with some slow-mo myself..

What software are you using?



Nov 17, 2009 at 03:33 PM
kakomu
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p.1 #9 · Sophie, slow motion with Canon 7D


Matt Cope wrote:
Very cool. Must have a play with some slow-mo myself..

What software are you using?


I use VirtualDub. (best part: It's free)

Load video into VirutalDub, click video->Frame Rate. In the box titled "Source frame adjustment" click the radio button to "Change to ... frames per second" where a box exists between "to" and "frames". Type in a number that's lower than the current number.



Nov 17, 2009 at 03:39 PM
mike kobal
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p.1 #10 · Sophie, slow motion with Canon 7D


kakomu wrote:
That being said, the slow motion (if properly done) should look the same no matter which post-processing program you use unless it's trying to extrapolate or interpolate between frames...in which case, you'll probably want to avoid such plugins.


exactly my reasoning, still not sure why, it looks better when done in ae then fcp. going to try virtualhub



Nov 17, 2009 at 05:11 PM
Tubby
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p.1 #11 · Sophie, slow motion with Canon 7D


Loved it except for the creepy, breathing sound.


Nov 19, 2009 at 11:23 AM
toddf
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p.1 #12 · Sophie, slow motion with Canon 7D


Tubby wrote:
Loved it except for the creepy, breathing sound.

I'd add the heart beat sound instead
I think the light setting flatted out the model's facial structure after all.



Nov 19, 2009 at 06:52 PM
musclepics
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p.1 #13 · Sophie, slow motion with Canon 7D


Hey pretty cool.
She reminds me of Cate Blanchett in Lord Of the Rings.



Nov 20, 2009 at 03:47 AM
benjikan
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p.1 #14 · Sophie, slow motion with Canon 7D


mike kobal wrote:
http://www.mikekobal.com/blog/?p=360
tried to embed the video directly into this post, does not work...
mike



More than the video, I really appreciate your lighting. Really sweet! If you don't mind my saying, perhaps try lighting the background around 2 stops hotter than the foreground (on the model) but meter for the model only. You might like the effect.

Ben



Nov 20, 2009 at 05:24 AM
wordski
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p.1 #15 · Sophie, slow motion with Canon 7D


Pretty freakin' cool except for the super creepy audio. Didn't fit the beautiful model. Otherwise..VERY cool.


Nov 23, 2009 at 12:25 AM
peterbanks
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p.1 #16 · Sophie, slow motion with Canon 7D


That was very cool!


Nov 23, 2009 at 09:51 AM
mike kobal
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p.1 #17 · Sophie, slow motion with Canon 7D


thanks guys!


Nov 27, 2009 at 03:25 PM





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