Fig. 1From: 3D structured illumination microscopy of mammalian embryos and spermatozoaPreparation of slides. a The film was attached to the slide. The black arrow marks the spot where the film was pressed against the slide in a circular motion. b The film layers were cut with a scalpel. The dashed lines mark the cutting positions. c The slide was prepared for storage. The grey areas inside the outer border mark Tesa-Film removed with 'tweezers'Back to article page