MOCAP1 is a corpus of French Sign Language (LSF) captured using a motion capture system and an HD camera. It consists of 5 tasks of different natures: description, explanation, narration and translation, realized by 4 speakers (8 for the task of description). The final version will include all the primary data (videos and mocap) and annotation, as well as the elicitation material. Version 1 contains some of the files that make up Task 1.