Crono is a single photon counting and timing camera based on an imaging array of 8 × 8 or 128 × 1 smart pixels, comprising single-photon avalanche diodes, analog front-end and digital processing electronics. Crono provides single-photon sensitivity, high electronic noise immunity, and fast readout speed up to 1.28 Mframes/s with negligible inter-frame dead time. Photons can be either counted or accurately time tagged thanks to in-pixel TDCs. In addition, a fully configurable common gate enables acquisition only during specific time-windows.