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Author Topic: How can these pictures be possible?  (Read 1228 times)

Guillermo Luijk

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How can these pictures be possible?
« on: March 31, 2022, 06:33:25 pm »

How can these pictures be possible? (they're single shots) Some sparks seem to have unnaturally flown over the people's heads (woman in the first picture, guy in the second):





I have my theory (with which BTW few people agree on other forums), but would like to hear from you first.

Regards

digitaldog

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Re: How can these pictures be possible?
« Reply #1 on: March 31, 2022, 06:34:33 pm »

Looks like bad Photoshop to me.  ;)
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Guillermo Luijk

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Re: How can these pictures be possible?
« Reply #2 on: March 31, 2022, 06:36:12 pm »

Looks like bad Photoshop to me.  ;)
No they're not, they're real pictures. Even the author can't explain.

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digitaldog

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Re: How can these pictures be possible?
« Reply #3 on: March 31, 2022, 06:38:12 pm »

No they're not, they're real pictures.
How to know (until Adobe implements their new schema to detect they have 'touched' the image)?
Love to get a raw, that would help.
If it really isn't bad Photoshop, sure likes like bad Photoshop as I see the top image here.
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Guillermo Luijk

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Re: How can these pictures be possible?
« Reply #4 on: March 31, 2022, 06:41:35 pm »

Maybe this helps you in avoiding the Photoshop route, and I'm already talking too much:



They are no fake pictures Andrew, I can assure that since the author published several other similar pictures and wonders the same as anyone seeing them.
To give some more information, what it was being photographed is a "traca", a fast and powerful sequence of fireworks whose main purpose is noise and vibration rather than light or colours. In fact they're generally shot during the day like here (wait to the end):

https://www.youtube.com/watch?v=jzdQzl1AxpU

https://www.youtube.com/watch?v=n1AOM334qoI

Regards


« Last Edit: March 31, 2022, 06:56:08 pm by Guillermo Luijk »
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digitaldog

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Re: How can these pictures be possible?
« Reply #5 on: March 31, 2022, 07:00:01 pm »

Maybe it is the same fellow who shot this dress:   ;D
https://en.wikipedia.org/wiki/The_dress
Anyway, if he's really interested in how or what happened, a raw would do wonders.
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MichaelKoerner

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Re: How can these pictures be possible?
« Reply #6 on: April 01, 2022, 12:00:56 am »

To me it seems as if the traca's ingredients would show some kind of "burning frequency".

fdisilvestro

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Re: How can these pictures be possible?
« Reply #7 on: April 01, 2022, 12:15:00 am »

My guess is that the firework acted like a flash, with a strong instantaneous light that freeze the people and then while people moved the remnant sparks exposed the sensor but were not bright enough to lighten the surroundings. That's why you have sparks on top of people.

You can see in the first photo some lights that give a hint of a rather long exposure.

Guillermo Luijk

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Re: How can these pictures be possible?
« Reply #8 on: April 01, 2022, 04:52:22 am »

To me it seems as if the traca's ingredients would show some kind of "burning frequency".

My guess is that the firework acted like a flash, with a strong instantaneous light that freeze the people and then while people moved the remnant sparks exposed the sensor but were not bright enough to lighten the surroundings. That's why you have sparks on top of people.

You can see in the first photo some lights that give a hint of a rather long exposure.

What you both say is exactly what I think: the traca is a sequence of fast explosions. The exposure time I recall was 1/8, time enough to include a couple of explosions (if we look closely we'll see some ghosting artifacts in the moving people derived from lightings of different intensity). I see indications why the sparks are not likely flying over the people's head in those pictures (they do in general, and it's not dangerous, but didn't happen in these two cases):
- Most sparks seem to be contained in a ~4m radio sphere, while people are much farer from the centre of explosion than that. Only sparks much faster than the rest could reach the people at that time (this is not impossible, but not likely).
- On the other hand, and specially in the second picture, the spark trajectory is a bit erratic. This indicates a quite low speed which is contrary to the previous idea.
- I don't see a clear perspective shape in the sparks trajectories: sparks coming towards the camera should clearly show wider traces in their end close to the people. In the first image I could have a doubt on this.
- Finally all the "unexpected" sparks fall over people that were moving, which enforces the idea of the flash effect.

Regards
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