It's easy to do if you have imageready and photoshop.
Set up your render, and render it to its OWN SEPERATE FOLDER othewise it gets alittle hectic.
Now, instead of saving it as a .mov save as a .jpeg. It'll render every frame by itself. Afterwards, go into ImageReady, go to Import > Folder As Frames. Let it load, make any adjustments. Then, go file > open in phtoshop, Give it a minute to load every frames, im not sure but I think you have to make every frame visible. Then, go to file > save for web, click play, preview it, change anyhting you want to, then click Save. Should be done now, and it should be saving as a .gif file.
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