Waaaay back in the way back, we had fun enabling “Safe, humane tourist-zapping in Photoshop Extended,” using special multi-frame processing techniques to remove transient elements in images. Those techniques have remained obscure yet powerful. In this short tutorial, Julieanne Kost puts ’em to good use:

In this video (Combining Video Frames to Create Still Images), we’re going to learn how to use Smart Objects in combination with Stack Modes to combine multiple frames from a video (exported as an image sequence) into a single still image that appears to be a long exposure, yet still freezes motion.