To capture a screenshot:
Type /shot in chat anywhere (in the lobby or in a match) and it will capture your screen.
Then to find those screenshots go toIf you're on windows XP you'll need to useCode:Documents\My Games\Smite\BattleGame\ScreenShotsOnce you've found the file upload it toCode:%userprofile%\Documents\My Games\Smite\BattleGame\ScreenShotsand share the link here.
To capture video is a bit more complicated, but here's how in pictures.