A brief account of the anatomy of the axial foot joint is followed by a description of three new radiographical techniques: oblique lateromedial projection, oblique bifocal projection, and projection under load. These can ben supplemented by the projection for the posterior subtalar described by Garneri in 1977 in investigation of the joint with or without loading. In lateromedial oblique projection, the foot is inclined 40-45" lateromedially on the box, with a 15" oblique central radius anteropostcriorly. The course of the joint is determined, less clearly at the subtalar level, more clearly distally at the tarsal sinus. In oblique bifocal projection, the foot is inclined as before. Two pictures are taken with the oblique radius at 15" anteroposteriorly and 15" posteroanteriorly respectively. The joint is clearly visible, except for the posterior subtalar. Projection under load: normal loading of the foot. Oblique central radius 45" lateromedially and 15" antero-posteriorly.