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The Official High-Speed Camera Thread

All non-spudgun related discussion goes here such as projects, theories, serious questions, etc. All "off-topic" posts (aka useless posting, determined by moderators) will be removed.
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Unread postAuthor: Solar » Fri Jul 20, 2012 3:39 am

Thank you for the info, Larda. I am picking up my new 1000w bulb for my Altman halogen filxture tomorrow. I will post my results.
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Unread postAuthor: Technician1002 » Fri Jul 20, 2012 8:44 am

It is a little more expensive, but the solution for most high speed photography is to use DC in an efficient DC arc lamp. Common lamps include carbon arc (with a Positive and Negative rod) or a Xenon projector lamp. With a proper DC supply, they provide an intense steady light suitable for color high speed photography.

A source for either of these is the movie projection industry. They need a flicker free bulb that won't flicker with a film projector shutter. With many theaters going digital, you may be able to find an old school 35mm projector lamphouse for cheap. Many of them are in the 1.5 to 2 KW size.
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Unread postAuthor: Solar » Sat Jul 21, 2012 1:10 am

This video has been sped up 4x on playback. Recorded at 1000 fps. Using a 750 watt halogen with a fresnel lens at about 5 feet. Brightened up in post as well. I will try and capture something more exciting tomorrow. At this speed you are able to notice a shockwave through the body on impact that almost looks like a lens distortion.

[youtube]http://www.youtube.com/watch?v=AM_h2iOyQnQ&feature=youtu.be[/youtube]
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Unread postAuthor: jackssmirkingrevenge » Sun Aug 05, 2012 3:48 am

[youtube]http://www.youtube.com/watch?v=0giK-zqrAKI[/youtube]

Oh FAP FAP FAP FAP! :D

Fantastic...

And look how relatively stable the base of the sabot stays in spite of the fact that it's not stabilised in any way, probably because of the sheer velocity.
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Unread postAuthor: ramses » Sun Aug 05, 2012 1:14 pm

I'm really quite curious how they track shots like that. I assume they use a light sensor to detect the muzzle flash, then use a servo to accelerate a mirror spinning so as to track at the expected velocity, but I didn't notice any appreciable period of acceleration from static to panning, which should be evident at such a slow playback speed. Additionally, such a system would be unlikely to oscillate like that at the end.

Thoughts?
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Unread postAuthor: jackssmirkingrevenge » Thu Aug 16, 2012 9:58 am

ramses wrote:Thoughts?


I say spring loaded mirror.

[youtube]http://www.youtube.com/watch?v=2_JTT3OsDJQ[/youtube]

fap fap fap fap...

The fact that it uses "sensor aperture domes" makes me imagine BAE systems have now employed GlaDOS...
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Unread postAuthor: jackssmirkingrevenge » Sat Sep 22, 2012 3:39 am

some nice pistol high speed:

http://vimeo.com/48571597
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Unread postAuthor: Technician1002 » Sat Sep 22, 2012 12:41 pm

Telephoto lens shooting into a high speed servo galvanometer mirror. Think of the high speed mirrors used to scan lasers for laser light shows. At a long distance, they are plenty fast enough to track the projectile.
[youtube]http://www.youtube.com/watch?v=BHh-G45pzuM[/youtube]
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Unread postAuthor: Labtecpower » Sat Sep 22, 2012 1:46 pm

Bombs And Entertainment :D

nice vids!
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Unread postAuthor: jackssmirkingrevenge » Wed Oct 24, 2012 12:37 am

[youtube]http://www.youtube.com/watch?v=SKowzoEsdp4[/youtube]

That car shot is awesome, cannon ball don't care...
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Unread postAuthor: Crna Legija » Wed Oct 24, 2012 3:50 am

that was awesome, its like that ball didn't even feel it!
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Unread postAuthor: MrCrowley » Wed Oct 24, 2012 3:50 am

Subbed. One of my new favourite channels.

Has anyone figured out where he gets the money for the gear? Judging by people he's filmed in his videos, he knows a fair few popular YouTubers. In another video he mentioned "renting" the high speed crew. Smarter Every Day has done the same but when he rented a high speed camera for one day for a few thousand dollars, it was no where near the Phantom-esque quality and frame rate of ratedrr.

I'm thinking some production company has "clicked" and realised that it can access millions of people over a few days, several times a month, for relatively cheap. Either that, or he's got something going on like the SlowMoGuys.

In more depressing news, I'm thinking about getting the Nikon J1. I want a camera that has entry-level DSLR photo quality with great video quality. Entry-level DSLRs aren't too expensive but they're quite bulky and I haven't found many with great video features. The J1 is handy because it can film 1200fps like the EX-F1. On the other hand, mirrorless cameras seem quite fragile and battery life isn't as good.
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Unread postAuthor: jackssmirkingrevenge » Wed Oct 24, 2012 5:12 am

that was awesome, its like that ball didn't even feel it!


I love the delay between projectile contact and the car actually moving back :D

Some more big bore vs car slow mo footage here:

[youtube]http://www.youtube.com/watch?v=0afPoiFPG-4[/youtube]

Check out the 75mm at 29:16 especially :D

Not sure if I posted it before.

I'm thinking some production company has "clicked" and realised that it can access millions of people over a few days, several times a month, for relatively cheap. Either that, or he's got something going on like the SlowMoGuys.


It's basically the FPS Russia formula, but made to appear to a wider audience than prepubescent CoD fanboys.
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Unread postAuthor: jackssmirkingrevenge » Thu Oct 25, 2012 11:38 pm

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Unread postAuthor: Hawtdawgspudder » Fri Oct 26, 2012 3:53 am

We want MOAR TANNERITE!
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