What happens when you put a camera on a helicopter rotor
People who liked this video also liked
Comments
12 comments posted so far. Login to add a comment.
46
2. banzemanga commented 11 years ago
Interesting but too long.
38
4. captain_obvious commented 11 years ago
now with a high speed camera
31
6. Zeusisgreat commented 11 years ago
time travel
43
7. CorpseGrinder commented 11 years ago
#1 aye same as seen here from the ground: http://www.snotr.com/video/1963/Amazingly_flying_helicopter
43
8. Benassi-MBeon commented 11 years ago
#1 Uhm, isnt he filming and not taking pictures? When filming, isnt the shutter opened constantly?
53
9. Judge-Jake commented 11 years ago
I would like to see size of the piece of bluetac used to hold the camera in place.
35
12. Gorf commented 11 years ago
It's only partly to do with shutter speed.
Modern CMOS cameras which make high-resolution video affordable have a usually undesirable effect called "rolling shutter". Every frame is made up of 1080 separate moments in time, instead of the exact same instant every 1/25th or 1/30th (or whatever) of a second.
The first time the image appears to have settled back to its original state is when the rotor is at 1080rpm (or whatever the vertical resolution of the camera is. At 30rpm the image is from 12 different points in the rotor's spin - all cycling every 12 lines of the frame.
To further complicate visualising what's happening, the camera is recording in portrait mode - presumably so it can be more easily balanced when secured to the rotors.
Modern CMOS cameras which make high-resolution video affordable have a usually undesirable effect called "rolling shutter". Every frame is made up of 1080 separate moments in time, instead of the exact same instant every 1/25th or 1/30th (or whatever) of a second.
The first time the image appears to have settled back to its original state is when the rotor is at 1080rpm (or whatever the vertical resolution of the camera is. At 30rpm the image is from 12 different points in the rotor's spin - all cycling every 12 lines of the frame.
To further complicate visualising what's happening, the camera is recording in portrait mode - presumably so it can be more easily balanced when secured to the rotors.
+13 1. BarraMacAnna commented 11 years ago
Anyway, Trippy!