High-Speed Film Cameras

[Erdwolf_TVL]

I've seen a large number of high-speed cameras on EBay recently.

 

Amonst others, an incomplete Hycam (as below...)

 

http://www.visinst.com/Hycam.html

 

Admittedly, 12 000 frames per second is of little use to cinematographers. Still curious, though. According to some on-line resources, this device uses a rotating prism. (A normal claw and shutter mechanism probably won't stand up to the running speeds :)

 

If I understand this concept correctly, the film never stops moving and the image to be captured moves along with it. (Correct me if I'm wrong here.)

 

Now I'm curious whether there are any cine camera that use this concept?

 

If not, why not?

[Stephen Williams]

I've seen a large number of high-speed cameras on EBay recently.

 

Amonst others, an incomplete Hycam (as below...)

 

http://www.visinst.com/Hycam.html

 

Admittedly, 12 000 frames per second is of little use to cinematographers. Still curious, though. According to some on-line resources, this device uses a rotating prism. (A normal claw and shutter mechanism probably won't stand up to the running speeds :)

 

If I understand this concept correctly, the film never stops moving and the image to be captured moves along with it. (Correct me if I'm wrong here.)

 

Now I'm curious whether there are any cine camera that use this concept?

 

If not, why not?

 

Hi,

 

For high speed cameras (over 500 FPS) pin registration, starting and stopping the film for each exposure is not really possible. The dissadvantage of rotating prisims is a slight loss of quality, and not such good registration frame to frame. Photosonics also use this concept.

 

Stephen

[Erdwolf_TVL]

Hi,

 

For high speed cameras (over 500 FPS) pin registration, starting and stopping the film for each exposure is not really possible. The dissadvantage of rotating prisims is a slight loss of quality, and not such good registration frame to frame. Photosonics also use this concept.

 

Stephen

 

Thanks!

 

http://www.photosonics.com/Rental/4C.html

 

Now I have some bed-time reading...

[Elhanan Matos]

I think 350 frames per second is the fastest you can get with the photosonics pin registered 35mm camera. Also with the rotating prism cameras you are limited to a 72 degree shutter.