File talk:4-14 Marines in Fallujah.jpg
Comment on authenticity
[编辑]This was removed from the image page:
- Controversy: This image appears to be digitally manipulated. The projectile coming out of the weapon would be traveling at such a high speed that a clear, crisp photograph of the project is extremely unlikely."
The above comment was posted from 66.16.177.252 — Bellhalla 17:50, 1 April 2008 (UTC)
I have a camera, an ordinary Kodak Easyshare, that took a picture of Blackhawk helicopters in flight in Baghdad when I was there in 2005. The rotors of the helicopters appear to be completely stationary, without a hint of blur. The tip speed of the rotors on a UH-60 is about 700-800 fps, the muzzle velocity of a round fired from a M198 howitzer is around 1700 fps, just over twice that speed. I think it's pretty likely that the picture is unaltered, especially since there is a bit of blur around the tip and base of the projectile, and if they were using a sufficiently high-speed camera.
Timing of this image
[编辑]How is it possible to time the capturing of the image in a way you can see the projectile just a few feet off the gun?
Chrfwow (留言)