This image was made with our single-photon setup: Stitched image of an unstained human melanoma cryosection (20x, NA 0.8, FOV 9.2 mm) - overlay of 432 nm (magenta), 515 nm (blue), 595 nm (green) and 681 nm (red).
Sample kindly provided by Dr. Branislav Zagrapan, Landeskrankenhaus Feldkirch.