Kino App Adds Pro-Level Video Format

Logarithmic video, or "log," intentionally captures a flat, desaturated image to preserve maximum dynamic range from the camera's sensor. This process retains significantly more detail in the highlights and shadows compared to standard video, providing a flexible foundation for professional color grading in post-production. The original Apple Log format, introduced with the iPhone 15 Pro, utilized the Rec. 2020 HDR color space. While a major step, this meant some of the file's data was allocated to colors the iPhone's sensor couldn't actually capture. Apple Log 2, which debuted with the iPhone 17 Pro, addresses this by using a new, wider color gamut designed specifically for Apple's sensor characteristics. This tailored approach improves color fidelity, particularly in challenging scenarios like deep blues and purples under neon or stage lighting, while making more efficient use of the available bits to preserve detail. The adoption of professional formats like Apple Log 2 directly impacts backend systems due to massive file sizes. A single minute of 4K ProRes Log video can consume up to 12-15 GB of storage, often necessitating direct recording to external SSDs. This data-intensive footage creates significant downstream challenges for infrastructure. It requires scalable, high-throughput storage solutions and robust transcoding pipelines to handle color space transformations, LUT applications, and the generation of proxy videos for editing platforms. The update from Kino, an app from Halide developers Lux, shows how third-party developers are building professional workflows around Apple's hardware capabilities. Features like instant grading with custom LUTs within the app still rely on powerful underlying processing and storage to manage the data-rich Log 2 format.