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Could you see light moving with a Phantom Camera?

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iLLbiLLy
Posts: 2865 - Karma: 2,631
Unless I F'd up my calculations really bad, with a phantom Camera shooting at 1,000,000 FPS you could slow video down 4.16e4 times(1e7/24fps). The speed of light is 3e8 so in turn you could slow it down to be traveling at a relative 7200 m/s. This is still really fucken fast but if you filmed a light being turned on in a really large room you could see frames where the light filled only parts of the room.
Apr 25 2011 1:48PM
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RubberSoul
Posts: 11249 - Karma: 14,642
threads
Apr 25 2011 1:50PM
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1337
Posts: 31039 - Karma: 29,013
you'd need a room > 7.2 km wide, which probably is too wide for a beam of light to cross unless you had a really fucking powerful laser or something
Apr 25 2011 1:51PM
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POWDER.RANGER
Posts: 1698 - Karma: -24
holy shit titties that would be awesome
Apr 25 2011 1:55PM
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iLLbiLLy
Posts: 2865 - Karma: 2,631
yea that what i was thinking at first, but if your final render is 24 fps then it would really only need to be 600 meters((7.2km/24)*2) and you would see light halfway filling the room in the second frame.
Apr 25 2011 1:56PM
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skithedirt
Posts: 1759 - Karma: 382
.
Apr 25 2011 1:56PM
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Tucks
Posts: 2120 - Karma: 161
No, I don't think you would
Apr 25 2011 1:56PM
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TACO-DOG.exe
Posts: 11986 - Karma: 12,240
you should spend $60,000 on a camera that can do that and try it out
Apr 25 2011 1:59PM
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iLLbiLLy
Posts: 2865 - Karma: 2,631
If I had 60,000 dollars i really would. I have wet dreams about that camera every night...
Apr 25 2011 2:00PM
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1337
Posts: 31039 - Karma: 29,013
hmm, maybe thats right. My head is full of fuck looking at all these numbers
Apr 25 2011 2:01PM
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CAPITA-DEVOURS
Posts: 1968 - Karma: 4
holy, the idea of that, is so sick!
Apr 25 2011 2:02PM
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the.cheat
Posts: 2859 - Karma: 171
my gut is telling me this won't work. but by all means go for it! i'm interested
Apr 25 2011 2:03PM
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sampsihoyos
Posts: 1939 - Karma: 910
how much does a phantom camera cost? i'm entrigued
Apr 25 2011 2:11PM
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Aaaron.
Posts: 11817 - Karma: 903
60ish
Apr 25 2011 2:13PM
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iLLbiLLy
Posts: 2865 - Karma: 2,631
http://www.visionresearch.com/Products/High-Speed-Cameras/v710/


This one does 1,400,000 fps. I have a feeling its well over 60g. I think the flex is 60g and it only does 13,000 fps
Apr 25 2011 2:22PM
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alexat955
Posts: 2732 - Karma: 112
somebody do it
Apr 25 2011 2:32PM
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feihlination
Posts: 8356 - Karma: 1,084
my guess is that given the existence of such cams that someone has already done something similar to that
Apr 25 2011 2:37PM
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the.cheat
Posts: 2859 - Karma: 171
have fun trying to make out a beam of light at...
Resolution FPS
1280 x 800 7,530
1280 x 720 (720p) 8,360
1024 x 768 9,520
896 x 480 (DVD) 17,000
768 x 576 (PAL) 16,100
768 x 480 (NTSC) 19,300
640 x 480 22,400
512 x 512 25,000
512 x 256 49,500
512 x 128 97,200
384 x 256 60,900
256 x 256 79,000
256 x 128 153,200
256 x 64 288,800
128 x 128 215,600
128 x 64 379,100
128 x 32 685,800
128 x 16 1,077,500*
128 x 8 1,400,000*
Apr 25 2011 2:39PM
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Mike-O
Posts: 14593 - Karma: 1,089
Where does the price tag on such equipment come from?
Apr 25 2011 2:40PM
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feihlination
Posts: 8356 - Karma: 1,084
when you youtube phantom cam there come a few vids, idk if they are indeed 1 million fps, but on some of them thats all the guys in the comment section talk about
Apr 25 2011 2:42PM
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WillStart
Posts: 3955 - Karma: 3,192
that's being really conservative. i was on a shoot a few weeks ago with the phantom that red bull recently purchased (i wasn't the one shooting it), and the whole phantom package was about $250,000
Apr 25 2011 2:49PM
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Aaaron.
Posts: 11817 - Karma: 903
word, glass especially can get real expensive, real fast. a friend of mine has around $28,000 in a RED. sick as ffff
Apr 25 2011 3:13PM
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WillStart
Posts: 3955 - Karma: 3,192
yeah for sure. on a side note, i heard that phantom's are hard as fuck to use. like basic camera function is relatively easy, but you have to take lessons on how to use it because it has all these quirks like if you have it at more than a certain angle to the sun, you'll get a huge black line across your footage, or if you have it tilted to the right too much it won't record, shit like that
Apr 25 2011 3:24PM
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WillStart
Posts: 3955 - Karma: 3,192
phantoms. herp derp
Apr 25 2011 3:24PM
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Mr.Turtle
Posts: 3690 - Karma: 96
i like this one, even if it goes nowhere its a neat idea
Apr 25 2011 3:25PM
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Aaaron.
Posts: 11817 - Karma: 903
yeah, the thing is a crazy machine. man i'm just trying to get a 7d haha. doesn't matter if you tilt it sideways haha
Apr 25 2011 3:29PM
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fitz
Posts: 455 - Karma: 54
Yeah, what that guys said above is right. At 1.4 million frames per second the resolution is 128 x 8. So Although you could probably have the difference in light in different frames I doubt you'd be able to see it.
Apr 25 2011 4:43PM
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feihlination
Posts: 8356 - Karma: 1,084
is this some optical restriction or simply a question of data transfer (the fact that the restriction goes down as you raise the fps)?
Apr 25 2011 5:02PM
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benJAHmin
Posts: 519 - Karma: 20
Well, time for interesting fact of the day, the speed of light is only constant in a vacuum and according to QI, scientists have managed to slow the speed of light down to 38 mph through some extremely cold substance that I can't remember, so I would say this would easily be possible in some way.
Apr 25 2011 5:27PM
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DOSE.
Posts: 1671 - Karma: 82
http://news.harvard.edu/gazette/1999/02.18/light.html
Apr 25 2011 5:45PM
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iLLbiLLy
Posts: 2865 - Karma: 2,631
Probably due to data transfer and processing power. having to process even only a few pixels 1 million times a second is super cpu intensive
Apr 25 2011 6:26PM
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