The Welsher Lab has created a 3D Virus Cam that can track particles that are faster moving and less bright than previous microscopes. This new development provides a robust method for real-time 3D tracking of fast and lowly emitting particles, based on a single excitation and detection pathway, paving the way to more widespread application to relevant biological problems. Learn more about the Welsher Lab's "virus camera" in the recent issue of Optics Letters, available here or watch as it tracks a lentivirus on the Duke Research Blog.