Changing the point of focus from one character or object in frame, to another character or object that is closer to or more distant from the camera, typically with little or no movement from the camera itself. Used to subtly direct the viewers' attention to a specific part of the screen.
Alternatively called "Roll Focus" or, in film, "Pull Focus". Requires deft manipulation of the Depth of Field.
In motion picture and film-based television production, this is often done by a separate person (the "focus puller" or "first camera assistant") rather than by the primary camera operator. In video production, the cameras usually aren't large enough for this to be necessary, and on consumer-level gear, it might not even be possible because of the way autofocus is usually implemented. note
Sometimes used in two-dimensional animation, which involves filming the foreground and background separately and then combining them.
In theory Rack Focus should be made redundant in new 3D films because the viewer would be able to change focus at will. Of course because it is a simulation of 3D this isn't quite true and the technique remains. This sometimes causes frustration as the viewer wants to change focus but cannot.
- Hanayamata: Imitated in anime adaptation episode 1. Schoolgirl heroine Naru is trying to sheepishly peek around a corner, her best friend Yaya is on screen, mere few steps behind her and watching. Until she calls out to Naru, Yaya is strongly blurred along with background scenery. When she does, camera moves to bring her closer to the center of the frame as all blur is lifted, rather than being reapplied to "foreground."
- Used for dramatic effect in episode 4 of Code Geass. Lelouch, making his debut as the masked rebel Zero, tries in vain to get Suzaku to join him, as Suzaku walks away, presumably to a guilty verdict for a murder he didn't commit, and his execution. Zero, in focus, shouts to Suzaku in the foreground, "Don't be an idiot!". At that moment, the focus shifts to Suzaku, who replies, "An old friend always used to tell me that," - meaning Lelouch. In the end of the season, when he sees that Lelouch is Zero, he reacts with sadness, not shock, and says, "I didn't want it to be you,". It's incredibly likely that he realized the truth at that moment back in episode 4, and was in denial over it for the rest of the season (his specialty). That would also explain why at so many times in conversations between them, when they get close to something that might be incriminating for Lelouch, it's Suzaku that changes the subject or doesn't press.
- The opening song of The Lion King, when the focus shifts from a line of leaf-cutter ants on a branch in the foreground to a herd of zebra thundering by below.
- In Up, when Carl Fredricksen looks up to his house where the picture of his wife is hanging.
- Legend of the Guardians: The Owls of Ga'Hoole: A flying owl in the background and one of its feathers in the fore, as seen in the trailer.
- Toy Story 3: As Woody is trying to escape out the window of the daycare restroom, the camera pans to the mirror opposite as the janitor looks right at Woody's reflection and comments "What the heck?" Then the focus shifts to show he was actually looking at a patch of scum on the mirror that's just big enough to obscure Woody.
- Toy Story 2 has a scene where Woody looks at Jesse sitting depressed on a windowsill.
- Used in An Extremely Goofy Movie after Max leaves for college, when Goofy is in his empty room and sees in the mirror reflection that he left his old stuffed bear behind n his bed.
- Used to dramatic effect in Big Hero 6 when Hiro rips out Baymax's healthcare chip and throws it onto the floor. The chip rolls to the foreground, where the camera focuses on it to show that Hiro has essentially tossed away his morals.
- In the beginning of Avatar, the focus shifts from Jake's face to the floating drops of water(?) to introduce the fact that it's 3D. However the technique can be annoying later on as explained above.
- In the film of Harry Potter and the Philosopher's Stone, as Harry walks past a Quidditch store, the view, from inside the store, shifts from his face to a closeup of the Nimbus 2000 lettering on the broom in the window.
- Master and Commander, while the crew is on shore leave in the Galapagos, this is used to transition from Dr. Maturin holding a beetle to the Acheron sailing in the inlet right before his eyes.
- In The Master Detective and Rasmus, Kalle and Anders need to catch up with a car, a seemingly insurmountable task according to Anders. In response, Kalle looks into the background of the scene, where a Rack Focus reveals a motorcycle with a passenger's seat.
- In Who Framed Roger Rabbit, when Eddie has his Eureka Moment, with Eddie in the foreground and the newsreel footage in the background.
- The first film in the The Hobbit film series used this in a conversation between Gandalf and Galadriel, since it was taking place telepathically. The focus faded forward and back several times within one shot to indicate who was "talking".
- In an episode of Glee, Santana, placed in the immediate foreground, makes a rude crack about all-boys schools being an endless source of gay jokes; the camera then pulls a rack focus to the other end of the room to capture Kurt's irritated reaction.
- In the Supernatural episode "All Hells Breaks Loose, Part Two" (S02, E22), the focus starts on Jake's face and switches to the barrel of the gun, which shakes in Jake's hand. The focus is then on Jake pulling back the hammer of the gun and finally back on Jake's face as he lowers the gun.
- In El Goonish Shive, this effect is simulated to shift focus between Ellen and Abraham's axe in this strip and the former page image.
- Dexter's Laboratory used this effect in several episodes...
- "Topped Off" - After Mom and Dad drink their coffee and magically get dressed and leave the kitchen, the focus shifts from a cup of coffee in the foreground to Dee Dee and Dexter in the background staring at the cup telling each other to drink it.
- "Quiet Riot" - The scene focuses on a fly that lands on Dexter's nose while Dexter is sleeping. Dee dee rises in the background while the scene focuses on her...
- In "Lesson Zero" of My Little Pony: Friendship Is Magic, there is an instance of this at the end of the episode, where we focus on a worried Spike to Celestia lecturing Twilight in the library after the latter had caused a ruckus just to find a lesson to learn.
- "Putting Your Hoof Down" has a focus switch between Fluttershy and a boarded-up door.
- Used near the beginning of the Tom and Jerry short "Tall in the Trap", with a "Wanted!" Poster with Jerry's face on it in the front, and a shop where Jerry is stealing cheese from in the back.
- Used in The Teaser the Arthur episode "Don't Ask Muffy", when Buster is talking to a psychiatrist for advice.
- The Simpsons: Used in "Heartbreak Hotel" during an extended parody of Who's Afraid of Virginia Woolf?.
- The Lytro camera takes pictures in such a way as the focus can be adjusted in post-production, theoretically making rack focus effects on a still image possible (i.e. in a GIF animation or something similar). However, the ability to do this goes away once you've exported the picture to JPEG from the native format.