Sony have announced an upcoming feature for the F5 and F55 CineAlta cameras, an optical 2K Filter Option called the CBK-55F2K.

Sony F5 F55 Optical Filter Unit

From Marketing Manager for Super 35mm acquisition and technologies at Sony Electronics, Peter Crithary


We are going to release a new Optical 2K Filter Option for the F55 and F5, called the CBK-55F2K.

The CBK-55F2K will result in “softer, more organic” imagery when shooting in 4K. When shooting HFR in 2K RAW the new filter will result in more pleasing imagery.

The filter is easy to install, it only takes a few minutes. You can switch back and forth with your existing filter in the camera if necessary.

Pricing, availability and further information will be coming shortly


For the latest news about the Sony 2K CBK-55F2K filter option for the F5 and F55 CineAlta cameras follow the Sony Community Forum.

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