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Welcome to FM As others mentioned, for video you are better off with a manual focus lens since they usually have better manual focus mechanism//rings (which is essential for video) than AF lenses.
+1 to the Rokinon 35 1.4, it's amazing for video. Also +1 to AIS lenses, particularly the 105 2.5 AIS for a longer reach and the 28 2.8 AIS for going wider and it also has a very close focus distance. If you have the funds, of course nothing beats Zeiss glass for both video & stills.