1) I remember reading this the first time around, amazing article and analysis
2) dpreview is my go-to website for camera information (as gsmarena is for cellphones)
Two photographers captured the same millisecond in time (2018)
71–80 of 116 posts
Re: Two photographers captured the same millisecond in time (2018)
#72Earlier quoted context omitted.
You can also cross your eyes such that each image overlaps each other to get a persistent 3D representation
The depth is inverted if you look at them cross-eyed. If you swap the positions of the two pictures it will look correct.
Alternatively you can look at them by relaxing the eyes to infinity (parallel lines), which I find much less painful than going cross-eye.
Re: Two photographers captured the same millisecond in time (2018)
#73Earlier quoted context omitted.
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.
In fact? How do you know that?
Does worry me sometimes that people just make those statements that they seemingly must believe but have no basis in reality.
Re: Two photographers captured the same millisecond in time (2018)
#74In a way this says something about human brains. Presumably both people took many pictures of many waves that day, but somehow both of them decided that this is the one that is the best from that trip. As humans we share a similar metric for beauty. I find this idea simultaneously obviously and amazing.
burst mode makes this a lot less improbable
"we were both recording a video at 7 frames per second from the same location and are surprised one of the frames were the same"
but yes other parts of this are quite coincidental, except the Canon supremacy.
Re: Two photographers captured the same millisecond in time (2018)
#75Earlier quoted context omitted.
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?
I've looked at user telemetry and the conclusion I've come to is that the only time you can trust is from systems under your control (i.e., submission time).
It's why the US patent system switched from "first to invent" to "first to file" in 2013. The last country to do so.
https://en.wikipedia.org/wiki/First_to_file_and_first_to_inv...
Re: Two photographers captured the same millisecond in time (2018)
#76Reading the title, I thought it would be this photo, which memed around Japan internet recently: https://cloudfront-us-east-2.images.arcpublishing.com/reuter... These two exposures surely overlapped, with the known photo probably exposing for tens of milliseconds on either side of the flash, but the lighthouse exposures might not have overlapped at all, yet captured a far more exact slice of time regardless.
The old rule for shooting flash photography was to set a relatively slow sync speed with a shutter & film-based camera to ensure that the flash itself occurred whilst the shutter was open, and when the shutter was fully open. So the precise timing of the flash needn't coincide with the moment captured on film.
A focal-plane shutter actually consists of two "curtains", front and rear, which expose the film in a slot at high speeds. Below a sufficiently slow speed, the shutter is fully open for a period of time, which is what is necessary for flash photography.
Shooting either unsyncronised (shutter opens or closes before flash fires), or at too high a speed where the entire frame isn't exposed at once results in a partially-exposed shot (example in the first image in the Wikipedia article below).
That was usually 1/60th of a second, or slower, and some interesting effects can be had when shooting with a flash, or multiple flashes, on a scene that's otherwise lit. It's also possible to sync the flash to the beginning or end of a long(er) exposure, which has the effect of either capturing the beginning or ending of a movement sequence. Rear-curtain sync is popular and shows the subject moving toward its final position which is fully illuminated by the flash.
https://www.digitalcameraworld.com/tutorials/rear-curtain-sy...>
The two cameras in the Japanese photo (the one capturing the flash of the other, which you show, and the image taken by the camera with the visible flash) likely occurred within 1/60th of a second of one another, but might differ in exposure start/end by as much as twice that interval, or 1/30th of a second. What we can be reasonably certain of is that when the flash fired, both shutters were open, but that's a relatively long period, photographically, at 16.7 1/1000ths of a second.
Some modern phones, and possibly smartphone cameras, may have a faster effective flash synch, particularly if they use an electronic shutter.
https://en.wikipedia.org/wiki/Flash_synchronization>
Re: Two photographers captured the same millisecond in time (2018)
#77Reading the title, I thought it would be this photo, which memed around Japan internet recently: https://cloudfront-us-east-2.images.arcpublishing.com/reuter... These two exposures surely overlapped, with the known photo probably exposing for tens of milliseconds on either side of the flash, but the lighthouse exposures might not have overlapped at all, yet captured a far more exact slice of time regardless.
Would you be so kind to share the context of that picture?
Post-game celebration in Japan: https://www.reuters.com/sports/baseball/tigers-fans-take-it-...>
The two "simultaneous" images are the one linked, and presumably the one taken by the woman whose camera flash is seen fully illuminated in the first picture, though as I've described, there might actually be a considerable difference the moments exposed due to flash sync speeds.
Re: Two photographers captured the same millisecond in time (2018)
#78In a way this says something about human brains. Presumably both people took many pictures of many waves that day, but somehow both of them decided that this is the one that is the best from that trip. As humans we share a similar metric for beauty. I find this idea simultaneously obviously and amazing.
This is ultimately a study in bias and how we choose to take pictures of the same things.
My dad and another photographer took the same picture of the same bird, a crane, at the same time and the same spot. Ibsaw both of them, and they are exacly the same. Both only discovered that after having run into each other again the same day on a different spot. They had quite a few outings together since then.
Fun fact, over a year later my dad and I had almost the same experience at the same spot shooting geese in flight. Judging by the angle, we were maybe just shy of a half a second or so appart. Maybe we should look at EXIF data to be sure!
Seems this stuff happens more often then people think.
Re: Two photographers captured the same millisecond in time (2018)
#79This is great! When I look at each picture with one eye simultaneously, I see the image in 3d.
Same! It’s truly amazing that our brains are capable of instantaneously synthesizing those minute differences into three-dimensional information.
Just tried the same, and I have only one word: stunning!
Re: Two photographers captured the same millisecond in time (2018)
#80Earlier quoted context omitted.
Pro tip: this is also how you can quickly solve those "whats different between these images" puzzles.
I wonder how widespread this understanding is. I figured it out a few years ago, but haven't heard anyone else mention it. It's a really cool hack.
I sometimes do, but usually it is more fun doing it the trafitional way with the kids!