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2.39:1
Camera · Technique

2.39:1

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Current SMPTE standard for anamorphic widescreen, de facto successor to 2.35:1. Dominant format for Hollywood blockbusters and visually ambitious productions with characteristic Cinemascope aesthetics.

Technical Specifications

The 2.39:1 aspect ratio was defined as the standard for anamorphic 35mm cinema by SMPTE in 1970. The minimal adjustment from 2.35:1 (from 2.35:1 to 2.39:1) resulted from a recalculation of the projector aperture for improved optical soundtrack compatibility.

Technical Parameters:

  • SMPTE Standard: SMPTE 195-1998
  • Projected Aperture: 20.96mm x 8.77mm (35mm Anamorphic)
  • Pixel Equivalent (4K DCI): 4096 x 1716 pixels (2.39:1)
  • Ratio to 16:9: 34% wider, significant letterboxing

Digital cameras offer native 2.39:1 modes:

  • ARRI Alexa 35: 4.6K Open Gate → 2.39:1 Crop
  • RED V-Raptor: 8K Full Frame → 2.39:1 Crop at 6K resolution
  • Sony Venice 2: 8.6K Full Frame with 2.39:1 sensor mode

The difference between 2.35:1 and 2.39:1 is practically negligible (< 2% height difference) – both terms are often used interchangeably.

History & Development

The adjustment from 2.35:1 to 2.39:1 occurred in 1970 through SMPTE standardization. The technical reason was the recalculation of the projector aperture for optimal optical soundtrack positioning – the image center was shifted slightly upwards.

In the analog era, the difference was barely perceptible. With digital projection and pixel-accurate mastering, 2.39:1 became the defined standard. DCI (Digital Cinema Initiative) adopted 2.39:1 as the "Scope" container for digital cinema prints.

Today, 2.39:1 is the universal scope standard for all digital workflows, although "2.35:1" continues to be used colloquially.

Practical Use in Film

Christopher Nolan's "Oppenheimer" (2023) strategically uses IMAX and 2.39:1 formats – the scope sequences mark dramatic tension, while IMAX is reserved for epic moments. DP Hoyte van Hoytema seamlessly switches between formats.

Denis Villeneuve's "Dune" (2021) showcases the strength of 2.39:1 for science fiction epics – the desert landscapes of Arrakis benefit from the horizontal expanse. DP Greig Fraser used ARRI Alexa LF with Panavision Ultra Vista anamorphic lenses.

The Marvel Cinematic Universe standardized 2.39:1 for all theatrical releases – the consistent aesthetic signals "blockbuster" quality and distinguishes theatrical films from TV spin-offs.

Digital Workflows & Alternatives

Open Gate Workflow: Modern DPs shoot in the maximum possible sensor resolution and crop to 2.39:1 in post-production. This allows for reframing, stabilization, and VFX freedom without loss of quality.

Spherical vs. Anamorphic: Spherical lenses + 2.39:1 crop create a clean, modern aesthetic. Anamorphic lenses + 2.39:1 de-squeeze create classic CinemaScope artifacts (oval bokeh, horizontal flares).

IMAX Hybrid: Films like "Top Gun: Maverick" switch between 2.39:1 and 1.43:1 IMAX – the format changes become a narrative tool.

The 2.39:1 standard remains the dominant format for visually ambitious cinema and signals cinematic intent over TV production.

From the crafts

Perspectives

Cinematographer

2.39:1 is the modern scope standard – technically identical to the historical 2.35:1, but SMPTE-standardized for digital workflows. Today, I mostly shoot with ARRI Alexa in Open Gate mode and crop to 2.39:1 in post. This gives me flexibility for reframing without any loss of quality. For true anamorphic aesthetics, I use Cooke Anamorphic/i or Panavision T-Series – the bokeh characteristic is not replicable digitally.

Director

2.39:1 signals "cinematic" – Netflix and Amazon Prime often demand 2.00:1, but I fight for 2.39:1 when the project deserves it. The horizontal stretch forces cinematic thinking – blocking, staging, set design must consider the format. 2.39:1 isn't cosmetic, it's a narrative decision.

Producer

2.39:1 is the Hollywood standard for tentpole productions. Marketing teams love it – "Filmed in Panavision Scope" creates a perception of prestige. The cost of actual anamorphic lenses (2500-4000 Euros/day for premium sets) is justified by the cinematic effect. For TV sales, 2.39:1 is problematic – significant letterboxing on 16:9 screens.

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2. Zu welchem Department gehört „2.39:1 (Scope)"?

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