eliminate every third frame!

[Jay Blanchard]

Not that I know of, but I would be interested to hear if someone knows an Expression for this.

If you’re looking to get a stuttered effect, you can always use the effect Posterize Time to change to frame rate. I don’t know if setting the frame rate to 20 with this effect would do what you’re looking for, but I’m sure it’s close.

[Dan Ebberts]

This time-remapping expression should do it:

f = thisComp.frameDuration;
frames = Math.round(time/f);
(Math.floor(frames/2)*3 + frames%2)*f

Dan