VirtualSite:- How many images would I need for a 15 sec Pal TV ad It would depend on what youre animating, to be honest. Like I said, I can go as low as 10fps and the difference in quality appears negligible. If you want to be safe and still turn it around relatively quickly, you can probably go for 15fps and still have smooth animation. But it really depends on what youre animating: something with fast movement, you can usually cheat a bit. Slower stuff, hike the fps a bit.