Abstract (unreferenced abstract 3 sentences, no more than 70 words)

In vivo imaging of growing and developing samples requires a dynamic adaptation of the sample orientation, which has been impossible in most light microscopes. Here, we present how, after the injection of magnetic beads, a sample can be freely positioned by applying a magnetic field. We demonstrate its performance for zebrafish larvae on a stereoscope and (zebrafish) embryos on a SPIM system.