Volumetric flame imaging based on tomographic reconstruction gives insights into the complex 3D-distribution of flame species. While multi-cameras are used in parallel to reconstruct the instantaneous 3D flame structure, time-averaged 3D flame imaging is possible with only one camera collecting consecutively the (laser induced) flame emission from multiple views. 3D flow fields in flames can be measured with LaVision’s FlowMaster Tomo PIV systems.