Skip to main content
Participant
December 20, 2018
Answered

Laser Show Documentation - how to avoid frame cuts

  • December 20, 2018
  • 1 reply
  • 463 views

Hi there I'm a laser artist, and often need to record a video for customers. The problem is the analog to digital conversion.

Lasers have a continuous line that get chopped in the video breaking the beauty of the laser drawing itself. Is there a way to avoid this?

I have for example a gopro that has 60fps maybe I could try integrating two or more frames into one and have a continuous line.

An example

Generative Circular Laser Patch - YouTube

This topic has been closed for replies.
Correct answer R Neil Haugen

The problem is that your motion is so fast and continuous, that when the camera creates a frame ... which is always a slice of time ... with this fast and precise motion, you can see the frames as frames, not as continuous as we "see" video. A higher frame-rate might help, also to blur it a bit with a slower shutter speed (counter-intuitive as it is) might help ... so perhaps the 60fps frame with a 1/30th-second shutter speed might be something to try.

Neil

1 reply

R Neil Haugen
R Neil HaugenCorrect answer
Legend
December 20, 2018

The problem is that your motion is so fast and continuous, that when the camera creates a frame ... which is always a slice of time ... with this fast and precise motion, you can see the frames as frames, not as continuous as we "see" video. A higher frame-rate might help, also to blur it a bit with a slower shutter speed (counter-intuitive as it is) might help ... so perhaps the 60fps frame with a 1/30th-second shutter speed might be something to try.

Neil

Everyone's mileage always varies ...
jesternAuthor
Participant
December 20, 2018

Thanks Neil that makes sense. So it's about my camera settings right?

Is there something I could do in the Software side too? At least for the footage I already have?

Thanks again

R Neil Haugen
Legend
December 20, 2018

If you go to the Effects panel, type in "blur", there's several types that pop up. You can try various of them, they all do different things and I'm no expert with blurs.

Also, AfterEffects allows easy and varied blurs, it might be a bit more suited for this.

Neil

Everyone's mileage always varies ...