Really cool page that I need to read later (Femto Photography)

[David.rhsc]

And that others might enjoy.

Can't give it more than a quick look and I want to read it later.

http://web.media.mit.edu/~raskar/trillionfps/

Dropping it here because I am almost never on facebook, and it'll disappear from there long before I check it again.

 

[chilipie]

This is fascinating… even if it does mess with your head.

 

[knightly]

It's just series of slit scan photographs that have been aligned to the timing of pulses of laser light. So it estimates virtual pulses of light, but not individual photons moving... that would be cooler

 

[David.rhsc]

It's just series of slit scan photographs that have been aligned to the timing of pulses of laser light. So it estimates virtual pulses of light, but not individual photons moving... that would be cooler

Basically yeah - still very cool as a technical study of photon movement, even if it has to be extrapolated. I'm trying to imagine the foot candles needed for an exposure at shutter speeds that are in the trillionth of a second (resultant exposure time) range.

Most interesting were the leading "finger/spike" shapes created just before an arc appears and starts moving towards the subject. I have to watch through the long vids again though, because the movement is just too interesting.

Practical application? Nah, just something to keep me thinking about light.

 

[Ernest Worthing]

Basically yeah - still very cool as a technical study of photon movement, even if it has to be extrapolated.

 

[knightly]

It's basically the leading edge of an expanding sphere breaking against the objects.