4K (resolution)

The terms used for the 2K and 4K production of feature films resolutions of the proof of the images are referred to footage and given the resolution of digital cinema cameras. It is accordingly 2K for a resolution of up to 2048 pixels in width, 4K for up to twice as much (4096 pixels). The exact number of pixels in the vertical and horizontal direction depends on aspect ratio, used film size, image size used and used film recorder. The 4K format is called Ultra High Definition Television.

Distribution and use

The vast majority of the current A - budget films will be made ​​digitally, which was still the exception in the 1990s. The resolution is for about 95 % of all ausbelichteten cinema productions 2K. The technical term for digital production is a digital intermediate. 2K data can also be transmitted via HD -SDI in real time.

The original recording in 4K format for direct television recycling was the pay-TV broadcaster Sky Germany for the first time on 1 December 2012 as part of the football Bundesliga match FC Bayern Munich to test against Borussia Dortmund.

Editing Systems

Media 100 Suite is one of the few software interface systems that support both the 2K - resolution still 3K and 4K resolutions and thus make cutting such high-resolution material possible. Even Final Cut Pro X can handle resolutions up to 4K. Sony Vegas Pro 12 supports native frame sizes up to 4096x4096.

Manufacturer and supplier of film recorders for 2K/4K

Only a few companies manufacture film recorder ago. As examples with a large market share ARRI would be mentioned with the product Arrilaser and with Celco Fury. Their devices are typically offered by service providers such as copying works or post-production houses. Another substantial market share have even developed or manufactured in small series imagesetter.

The GoPro HD Hero 3 Black Edition may also include in 2.7K and 4K. But it is an action camera with wide angle and thus can not be used for anything.

Costs, storage requirements and time required

The prices of high-quality 35-mm Ausbelichtung typically move 10000-50000 €. The price difference justified by addition to the usual market criteria

  • For the different run length of the film,
  • The footage used,
  • Additional services at the film exposure (eg, the Einrechnen the film light tone )
  • The recorder used,
  • The resolution used, so 4K resolution is typically 10 to 20 percent more expensive than 2K resolution.

The memory requirements of the data of the proof varies between 1.25 terabytes (2K, 24 fps, 90 minutes) up to 10 terabytes ( 4K, 24 fps, 180 minutes).

The period of the proof is typically 2 or 3 days to 2 weeks, depending on the speed of the used Ausbelichters, the resolution used and of course the running length of the film. As a special case real-time recorder may be mentioned as Cinevator HD, which directly expose the film in real time. Here the Nettoausbelichtungszeit is equal to the running length of the film.

Common resolutions

The example of the illuminators of the company Celco the various 2K and 4K Subformate are listed. Depending on the manufacturer of the film recorder, these measures raise some pixels in the vertical from.

( .115 - .009 ) (X Auflösung/.980 ) These are .115 ( = 0.115 inch) and 009 of the distance from the perforation of Academy offset and full-screen format.


  • Moving
  • Video technology
  • Cine - Standard