I'm trying to export an animated gif from a 30fps comp in After Effects. Adobe Media Encoder won't offer the option of 30 for frame rate (just 1,2,4,5, 10,12.5,20,25,50). I can't simply enter the value either. Is there a way to do this?
Animated GIF frames have duration specified in hundredths of a second.
At 30fps each frame would be 0.033333333....
The frame rates you list there all correspond to frame length with only 2 decimal places. Which is all that is allowed. Theres no way around that as far as I'm aware.
Also, according to this post on the Microsoft developer blogs, some browsers will automatically slow down animated GIFs with a framerate of 20fps or more.