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American Society Of Cinematographers to release StEM2 technology evaluation materials

Dec 15, 2021

The American Society of Cinematographers (ASC) has announces the release of its Standard Evaluation Material II (StEM2) project. The short film is an initiative by the organisation to provide standardised viewing material designed to aid in the development and calibration of technology impacting the modern imaging chain. StEM2 test packages will be available in early 2022 to download for free in all common theatrical and home TV formats.

The Mission, a professionally produced short film for the StEM2 initiative, emulates a high-end movie. Under the direction of the ASC, the film was designed to test exhibition and streaming systems, displays, and image-processing tools used in production and post.

“We set out to create a comprehensive assessment of the elements that increasingly impact professional production in today’s environment,” says ASC president Stephen Lighthill. “StEM2 offers the industry the information needed to support developments and advancements of products and solutions for image creation. Everyone from filmmakers, studios and post houses to engineers, technologists and manufacturers are affected by the technical complexities impacting storytelling.”

StEM2 was produced with significant backing from studios, technology companies and industry leaders, including a seed grant from Epic MegaGrants, as well as major support the Academy of Motion Picture Arts and Sciences (AMPAS) Scientific and Technical Council.

“We saw a need to measure the dramatic change in workflows to enable script-to-screen technology that will support the viewer’s experience as close as possible to the filmmaker’s intentions,” notes chairman of the ASC Motion Imaging Technology Council (MITC) Curtis Clark, ASC. “As exhibition technology continues to advance, there is a critical need for baseline evaluation material originated by neutral and trusted third-party imaging experts.”

The Mission was carefully conceived to exploit and challenge today’s exhibition and image processing systems. StEM2 utilized the Academy Color Encoding System (ACES) throughout the entire pipeline. The project evaluated the challenges of moving meticulously crafted images through cloud workflows, including camera-to-cloud, dailies, editing, rendering and creation of deliverables while simultaneously maintaining artistic intentions. Utilising an array of production environments, it was shot on location and on virtual production stages in July, capturing scenes shot in a dark cave, the desert, car interiors (day and night), city streets (night exteriors), and a dimly lit hospital (night interiors).

Additional parameters tested by The Mission include image high dynamic range, diverse skin tones, high resolution detail, in-camera VFX, fast moving action, and visuals to tax compression algorithms and image processing software.

StEM2 is an updated version of the ASC’s StEM1 project, which was a collaboration of the ASC and Digital Cinema Initiatives (DCI) in 2004. StEM1 helped DCI to establish technical parameters for digital cinema specifications during the transition from film print projection. It continues to be a bellwether for the industry in evaluating first generation digital developments. 

For more information on The Mission and accessing files, visit

The Mission Credits:

Director, Writer – Jay Holben, ASC Associate Member
Producers – Wendy Aylsworth, Jay Holben, Joachim Zell
Executive Producer – Curtis Clark ASC
Director of Photography – Christopher Probst ASC
Editor – Tim Squyres ACE
Production Design – John Muto
Sound Design – Terry Dorman, Greg Hedgepath, Alan Schultz
Original Score – Nami Melumad, Jacques Brautbar
VFX Supervisor – David Stump ASC
Costume Design – Marilyn Vance, Sylvestere Cetina
Line Producer – Justin Deiner
Cast – Ryan Kirby, Angelina, Jara, Nimo Purcell

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