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Registered Member #1497
Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
The bandwidth required for such a camera must be incredible. FPGAs and quite interesting hardware, thats for sure.
The downside is that you need extremely intense light, to the point where photographing living things is hazardous for them. You also need a constant light source (so AC lights flicker, so DC fluorescent or similar lights?).
I know nik has one of those consumer level high speed cameras with some cool shots from it. I hope more hardware like that becomes accessible for the amateur scientist.
Registered Member #2099
Joined: Wed Apr 29 2009, 12:22AM
Location: Los Altos, California
Posts: 1716
Very nice; thanks for pointing it out.
Along those lines, I'd always liked this video where camera follows a gun-fired penetrator (not a rocket!) in flight. Not sure what is actively discarded at 0:14.
Clearly the video capture involved a tracking mirror, like the galvanometers used by some of our laserists. At the limit of mirror deflection, we lose track of the flying projectile but can see the tracker "ring" for a few cycles. Today I found a commercial product for just that application: It's an accessory offered by a maker of million-FPS cameras. Enjoy!
-Rich
And for the less militaristic, the insects of Ultraslo. When this ladybug spreads its wings, it needs to let them firm up for a while before starting the engine.
Registered Member #53
Joined: Thu Feb 09 2006, 04:31AM
Location: Ontario, Canada
Posts: 638
I have found AC lighting and light intensity to be a problem even with my 300, 600, 12000fps camera. I was thinking about feeding my 500w halogen lamp with filtered DC but over the summer I was shooting outside only where flicker isn't a problem.
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042
Nik wrote ...
I have found AC lighting and light intensity to be a problem even with my 300, 600, 12000fps camera. I was thinking about feeding my 500w halogen lamp with filtered DC but over the summer I was shooting outside only where flicker isn't a problem.
you have a consumer level that does 12000?, or is that a typo - the casios, which are the only consumer levels I know of, one of which I have, can only do up to 1200
as for lighting, I use Studio Hot Lights made for cinematography and the like, no problems
florescent will not work because they flicker, and AC lights (normal Tungsten filaments) do not flicker as much as you would think because the Filament does not cool down enough to be very noticable, but it still is to a degree but enough consistency to work with
Stadium lights at sports events are absolutely HORRIFIC I must say, I've been having to deal with them while trying to get footage for my School Teams!
what also could work are strobes for their particular case, because the duration of the flash is much longer than that of the actual event and the source is constant throughout the course of the flash, but my guess is that they used an enormous number of Hot Lights
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One of the best high FPS movies Ive seen
