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What is MLV (Magic Lantern Video)?
CinemaKit · Updated:
MLV stands for Magic Lantern Video. It is a container developed by the Magic Lantern community for RAW video and associated recording information. CinemaKit uses MLV to keep Bayer RAW frames, audio and metadata together in one file per take.
A container, not a finished look
The .mlv extension identifies the container. It does not tell you whether footage has already been graded, how much dynamic range the sensor captured or what recording mode was used. In CinemaKit, the original Bayer data is developed when you play or process the clip. The same take can be developed with different white balance and color decisions.
How to open an MLV file
CinemaKit has a built-in RAW player, so you can check focus and exposure before you leave the location. On a computer, CinemaKit Studio opens MLV in a WebGPU-enabled browser. MLV App is another desktop tool in the MLV ecosystem. A general-purpose video player may not understand the container; renaming it to .mp4 will not convert it.
Transfer, export and archive
For CinemaKit takes, use the local Wi-Fi file server or a supported cable or external-drive workflow. After grading, export a format your editor supports. Keep the MLV original when you need compatibility with other MLV tools. CinemaKit can also convert a finished take to its lossless CKRAW format; CKRAW is for CinemaKit and Studio rather than a general replacement for MLV compatibility.
Technical references
Related pages
MLV vs CinemaDNG: which RAW format should you use?
Compare MLV and CinemaDNG for mobile RAW video: file structure, transfer, playback, compatibility and practical workflow choices.
What is RAW video?
Learn how Bayer RAW video differs from processed video, what you can change in post, and the storage trade-offs when recording on a phone.
CinemaKit Studio guide: open, grade and export
Follow the CinemaKit Studio RAW workflow: browser and GPU checks, local file opening, color correction, export and troubleshooting.
Getting started with CinemaKit
Your first CinemaKit RAW workflow: choose a supported camera, record a test take, review, transfer and export on phone or in Studio.