Selecting the master file format for 4K film digitization dictates dynamic range preservation, file size requirements, and color space compatibility over multi-decade storage lifecycles.
Dynamic Range Retention & Compression Schemes
10-bit Log DPX remains the legacy industry standard, but 16-bit half-float OpenEXR provides superior linear color fidelity, smaller file sizes via lossy/lossless PIZ compression, and multi-channel metadata embedding.