Screencap from one time I attempted this technique about a year ago

I am pumped for this project, especially since we are filming for it sometime next week. After speaking with my tutor, I received some sound advice: Find one effect that you are confident in, and base your twin screen around that. So that is exactly what I have set out to try and achieve, so here is the research that I've done


The effect I want to embark upon is a time displacement effect or, in Lenhams terms, a 'slit-scan' effect. Slit Scan is a photographic and cinematographic process in which a moveable slide has a 'slit' cut out of it and then placed between the camera and the subject to be photographed, often resulting in trippy photographs such as this:

HISTORY

Historically, slit-scan originates from the development of panoramic photography.
One of the first recorded patents for a panoramic camera was submitted by Joseph Puchberger in Austria in 1843 for a hand-cranked, 150° field of view, 8-inch focal length camera which was exposed onto a Large Daguerreotype (a polished silver coated sheet of copper).  

USE IN FILM

The slit scan effect has also made appearances in films, most notable for its appearence in Kubrick's 2001: A Space Odyssey, but used in a rather uniquely different way to simulate a sort of stargate-esque effect depicting what it might look like to travel through space and time.

 

Prior to Kubricks masterpiece, a film called 'To the Moon and Beyond' (1964) opened at the New York World Fair. This piece was created using Cinerama 360, which is a 70mm single film process usingfisheye lenses and then projected onto enormous domed screens to give audiences the sense of being immersed into an environment they have never experienced before.

Application