I want to shoot a sequence at 30fps using timeismotion to create the shot and then scale it down to 3spf for the actual timelapse. For the durations i would multiply my settings by 100, but what about the deg/min, do i divide by 100?

Wed Oct 06, 2010 5:44 pm

milapse

Re: Is the math linear on all settings?

I'm confused what are you trying to do?

Wed Oct 06, 2010 6:26 pm

grif

Joined: Tue Oct 05, 2010 10:06 pm Posts: 16

Re: Is the math linear on all settings?

I want to preview the move in realtime so i can quickly see what its going to look like, and then scale the numbers according to my timelapse framerate so it would be the same move, but in timelapse. So that if my preview move was to accelerate for 10, hold for 10, decelerate for 10, deg/min 300, at 30fps; And my timelapse is at 3spf (100x slower than 30fps), what would these numbers be to simulate the same move?

Thu Oct 07, 2010 1:14 am

milapse

Re: Is the math linear on all settings?

Hmm let's see.

At 1 second interval the relationship is: 30 FPS to 1 FPS

Now let's say your moving 100 deg per minute realtime.. that's 1.666 Degrees per second. So the equation you're looking for is:

30(fps) 1(fps) ------- = ------- 1.666 (d/s) X (d/s)

or 30X = 1.666

so X = .055

Thu Oct 07, 2010 8:53 am

grif

Joined: Tue Oct 05, 2010 10:06 pm Posts: 16

Re: Is the math linear on all settings?

Oh, seems like it would have been simpler to determine the scale factor by dividing the timelapse FPS by realtime FPS. I just wanted to know if it was as simple as scaling the durations up by this number and the speed down, but ill just have to experiment and see.

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