This isn't something that changed direction, the way it's so straight. Saw a few things today about how, like the high speed you'd need for that. Then this thread he's talking about just the distance it's travelling, compared to the speed of the camera. It's like way faster than what the bullet should have travelled. And he's only got 2 upvotes.
I am trying to figure out what exactly is that trace that photographer Doug Mills captured.
First of all that was not the bullet that grazed Donald Trump as you can see from the projection of its path. No projectile goes in a straight line but in this case the speed is so high and the distance covered so small that we can safely assume it’s straight. It passes very low while Trump was injured on the upper ear.
Now from all our options this is definitely not a bullet trail. A bullet trail is created with a change in atmospheric refraction, caused by the bullet, along the bullet’s path. It looks like the bullet trails you have seen in the movie Matrix without the pulsing effect. It is like a transparent distortion. It is also very long, so this is definitely not it.
The second option is for this line to be a bullet vapor trail but this again is not possible because these trails leave thick white ~long~ lines similar to airplane contrails and they need a dark background and low angle lighting in order to be seen clearly. These vapor trails are extremely rare and you need to have exactly the right conditions. Air temperature and dew point need to be very close. Humidity needs to be very high, which was not (it was 34%) or you need projectile speeds more than 4000 fps which again we did not have (it was less than 3000 fps). Also in bullet vapor trails you can clearly see the spiraling effect of the bullet. So this was not a bullet vapor trail.
The third option is for this line to be the actual bullet captured on camera, similar to a long exposure photograph, but if we examine this case we run into more issues.
Assuming this was the case, let’s try to calculate the speed of the bullet from the actual trace on the photo. We first need to find the length of that trace in real life. The height of Donald Trump is 190 cm. The height to shoulder ratio of the average male is ¼, so we can approximate his shoulder width to be around 47.5cm in real life. From that length and taking into account the slanted angle of his body as well, we can calculate that the actual bullet trace was approximately 28.9 cm or 0.289 meters.
Now, the photographer specifically stated that he used a 1/8000s shutter speed which means that the image sensor was exposed to light for 0.000125 seconds. In that time, the bullet covered a distance of 0.289 meters, so the actual speed of the bullet was approximately 2312 m/s or 7585 fps which is crazy.
If the shooter used the most common AR-15 rounds which are the NATO M855 62 grain and with a ballistic coefficient of 0.349, then the bullet left the muzzle with 3020 fps and its speed dropped to 2671 fps when it reach D. Trump. Not 7585 fps… Even if we miscalculated some of the variables especially Trump’s shoulder width, we cannot reach the 2671 fps. Not to mention that capturing a bullet trace with the specific camera and settings is extremely rare.
Or image was just photoshopped by photographer to receive some fame and hype.
As for calculations, they are OK, but I'm in doubt that shutter speed is real time of CMOS sensor exposure. This exposure values are legacy standard from film cameras. Exposure setting was estimated from illumination brightness along with film sensitivity value for best results. CMOS sensors have different properties, including sensitivity and working principle.
Exposure settings (along with "film sensitivity" (ISO) setting) in digital cameras made to be compatible with photo tradition. In CMOS sensor, exposure is really integration time, and ISO is amplifier gain, and they are completely different from exposure and ISO for film camera. So it is very possible that 1/8000 setting on camera have nothing to do with real CMOS sensor exposition (integration time) and it is inapropriate to calculate bullet speed from that virtual "shutter speed" that provided just for compatibility with film cameras setting.
AFAIK in Sony Alpha digital cameras, CMOS sensor integration time is less than shutter time, to cut off opening and closing times. CMOS sensor get image only when shutter is fully open with some delay after shutter fully open, unlike film in film camera that is exposed already at the beginning of shutter opening, and continue being axposed during closing, just with less light. At high shutter speeds like 1/8000 CMOS sensor "exposure" could be more than 2 times less than this film camera value.
"Or image was just photoshopped by photographer to receive some fame and hype"
He's already got fame, he was the guy who took the George Bush picture in the school during 911. What are the odds he'd suddenly be at a Trump rally to catch a bullet. I suspect he was hoping for a head shot in high res 4k. He claims he always travels with Presidents - except Trump isn't President and there was no reason for him to be at that rally, let alone with a camera on that fast shutter speed. He was there to capture an historic image, much like the Zapruder film, except this one wouldn't be grainy, they'd could all get off watching Trumps exploding brain in detail and completely demoralise his supporters by playing it non stop.
This isn't something that changed direction, the way it's so straight. Saw a few things today about how, like the high speed you'd need for that. Then this thread he's talking about just the distance it's travelling, compared to the speed of the camera. It's like way faster than what the bullet should have travelled. And he's only got 2 upvotes.
https://old.reddit.com/r/conspiracy/comments/1e66hoj/what_exactly_is_that_trace_lets_try_to_analyze_it/
What exactly is that trace? Let's try to analyze it. (self.conspiracy)
submitted 11 hours ago by moonatron
https://i.redd.it/hupztncho8dd1.gif
I am trying to figure out what exactly is that trace that photographer Doug Mills captured.
First of all that was not the bullet that grazed Donald Trump as you can see from the projection of its path. No projectile goes in a straight line but in this case the speed is so high and the distance covered so small that we can safely assume it’s straight. It passes very low while Trump was injured on the upper ear.
Now from all our options this is definitely not a bullet trail. A bullet trail is created with a change in atmospheric refraction, caused by the bullet, along the bullet’s path. It looks like the bullet trails you have seen in the movie Matrix without the pulsing effect. It is like a transparent distortion. It is also very long, so this is definitely not it.
The second option is for this line to be a bullet vapor trail but this again is not possible because these trails leave thick white ~long~ lines similar to airplane contrails and they need a dark background and low angle lighting in order to be seen clearly. These vapor trails are extremely rare and you need to have exactly the right conditions. Air temperature and dew point need to be very close. Humidity needs to be very high, which was not (it was 34%) or you need projectile speeds more than 4000 fps which again we did not have (it was less than 3000 fps). Also in bullet vapor trails you can clearly see the spiraling effect of the bullet. So this was not a bullet vapor trail.
The third option is for this line to be the actual bullet captured on camera, similar to a long exposure photograph, but if we examine this case we run into more issues.
Assuming this was the case, let’s try to calculate the speed of the bullet from the actual trace on the photo. We first need to find the length of that trace in real life. The height of Donald Trump is 190 cm. The height to shoulder ratio of the average male is ¼, so we can approximate his shoulder width to be around 47.5cm in real life. From that length and taking into account the slanted angle of his body as well, we can calculate that the actual bullet trace was approximately 28.9 cm or 0.289 meters.
Now, the photographer specifically stated that he used a 1/8000s shutter speed which means that the image sensor was exposed to light for 0.000125 seconds. In that time, the bullet covered a distance of 0.289 meters, so the actual speed of the bullet was approximately 2312 m/s or 7585 fps which is crazy.
If the shooter used the most common AR-15 rounds which are the NATO M855 62 grain and with a ballistic coefficient of 0.349, then the bullet left the muzzle with 3020 fps and its speed dropped to 2671 fps when it reach D. Trump. Not 7585 fps… Even if we miscalculated some of the variables especially Trump’s shoulder width, we cannot reach the 2671 fps. Not to mention that capturing a bullet trace with the specific camera and settings is extremely rare.
Something is not right.
So what is that on the photo?
Is it fake?
Or image was just photoshopped by photographer to receive some fame and hype.
As for calculations, they are OK, but I'm in doubt that shutter speed is real time of CMOS sensor exposure. This exposure values are legacy standard from film cameras. Exposure setting was estimated from illumination brightness along with film sensitivity value for best results. CMOS sensors have different properties, including sensitivity and working principle.
Exposure settings (along with "film sensitivity" (ISO) setting) in digital cameras made to be compatible with photo tradition. In CMOS sensor, exposure is really integration time, and ISO is amplifier gain, and they are completely different from exposure and ISO for film camera. So it is very possible that 1/8000 setting on camera have nothing to do with real CMOS sensor exposition (integration time) and it is inapropriate to calculate bullet speed from that virtual "shutter speed" that provided just for compatibility with film cameras setting.
AFAIK in Sony Alpha digital cameras, CMOS sensor integration time is less than shutter time, to cut off opening and closing times. CMOS sensor get image only when shutter is fully open with some delay after shutter fully open, unlike film in film camera that is exposed already at the beginning of shutter opening, and continue being axposed during closing, just with less light. At high shutter speeds like 1/8000 CMOS sensor "exposure" could be more than 2 times less than this film camera value.
"Or image was just photoshopped by photographer to receive some fame and hype"
He's already got fame, he was the guy who took the George Bush picture in the school during 911. What are the odds he'd suddenly be at a Trump rally to catch a bullet. I suspect he was hoping for a head shot in high res 4k. He claims he always travels with Presidents - except Trump isn't President and there was no reason for him to be at that rally, let alone with a camera on that fast shutter speed. He was there to capture an historic image, much like the Zapruder film, except this one wouldn't be grainy, they'd could all get off watching Trumps exploding brain in detail and completely demoralise his supporters by playing it non stop.
Didn't know that. Very interesting, thanks.