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Two photographers captured the same millisecond in time (2018)

dpreview.com

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Re: Two photographers captured the same millisecond in time (2018)

#31

Post by jvm___ »

pan69 wrote: post #4
jordanreger wrote: post #2

This is a fascinating article that covers something I've thought about plenty of times! Genuinely how often do people take virtually the same photo at the same time? You'd think it'd be more often at places like Disney World but it's fascinating to hear it happened in a scenario like this.

One that I sometimes think about is; how often you end up in other peoples photos? I wish there was an option in e.g. Google Photos where you could share (anonymously?) your photos with people you just happen captured by accident.

We participate in a glo-riders bike ride, so 150-200 bikes/scooters all with various levels of led lights from a strip on your helmet to 500+ synced to a speaker. A bunch of people have Bluetooth speakers playing the playlist of the ride.

It's not super well known, so random pedistrians or people at outdoor tables star and record the parade on their phones, so there's multiple videos of us all around town.

Re: Two photographers captured the same millisecond in time (2018)

#33

Post by xhrpost »

bean-weevil wrote: post #32

I'm surprised that the exif data was accurate to the millisecond. Quartz clocks won't typically maintain that precision over the course of a single day.

If the camera is pulling location from GPS then it's likely pulling time from it as well.

Re: Two photographers captured the same millisecond in time (2018)

#34

Post by mrb »

I cropped the pictures, and rotated Ron's picture by 0.2° (it wasn't perfectly vertical), so as to line them up on the lighthouse's door:

https://i.imgur.com/ISIGQrR.png

https://i.imgur.com/qLtZprZ.jpeg

Open both in 2 tabs on a computer, and quickly alternate between the 2 tabs, the 3D effect is quite visible because of the perspective differential :-)

Re: Two photographers captured the same millisecond in time (2018)

#35

Post by ipython »

clnq wrote: post #28
iramiller wrote: post #5

Stories like this remind me that in distributed systems time becomes a very imprecise concept at small scales.

What?

Think of it this way: you run a website that displays photos in chronological order. You receive these two photos. Which picture was taken first? How can you tell?

Re: Two photographers captured the same millisecond in time (2018)

#37

Post by throw310822 »

thenewwazoo wrote: post #24
dehrmann wrote: post #21

Earlier quoted context omitted.

It also tells us sometimes we fail to see the beauty around us.

Or maybe it says that we all see the beauty around us, but we don't notice everyone else seeing it, too. (More than one person stopped, but only two people knew that.)

Why only two? In fact, several of those who stopped to take the picture were also informed by a neighbour (each time a different one) that others had taken the same picture before.

Re: Two photographers captured the same millisecond in time (2018)

#38

Post by pimlottc »

mrb wrote: post #34

I cropped the pictures, and rotated Ron's picture by 0.2° (it wasn't perfectly vertical), so as to line them up on the lighthouse's door: https://i.imgur.com/ISIGQrR.png https://i.imgur.com/qLtZprZ.jpeg Open both in 2 tabs on a computer, and quickly alternate between the 2 tabs, the 3D effect is quite visible because of the perspective differential :-)

Works well with cross-eyed viewing too, with the images side-by-side:

https://jsfiddle.net/pimlottc/f1saz46m/1/show

Re: Two photographers captured the same millisecond in time (2018)

#39

Post by thih9 »

bean-weevil wrote: post #32

I'm surprised that the exif data was accurate to the millisecond. Quartz clocks won't typically maintain that precision over the course of a single day.

Did anyone actually look at the milliseconds? I thought it was just a reasonable guess — based on the incredible similarity of the waves.

Re: Two photographers captured the same millisecond in time (2018)

#40

Post by SpaceNugget »

ipython wrote: post #35
clnq wrote: post #28

Earlier quoted context omitted.

What?

Think of it this way: you run a website that displays photos in chronological order. You receive these two photos. Which picture was taken first? How can you tell?

That's not an example of a distributed system, so it doesn't really clear up whatever the GP was trying to say about time in distributed systems at small scales.

But even if it was this is nonsensical. The visual content of a photo is generally not what is used to determine the moment in time when it was captured. There's metadata in the image format that specifies when the photo was taken.

There are pictures taken at almost the same moment in time all the time around the world, and there are many pictures taken of the same place, what's special about the situation here is that both of those things happened, and the subject isn't hyper famous, and it isn't a static object, so the chances of it happening were very low.

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