Cranz-Schardin cameras are low-cost, high-speed cameras. Although developed over 70 yr ago and available commercially, the design principles are not found in standard texts. Geometric optics are used to develop the design of a Cranz-Schardin camera. The design reveals the tight coupling between the light sources and the rest of the optics. The design of a light power gathering system is also described. The implementation of the design principles is illustrated by an actual camera capable of capturing four frames at a maximum rate of 1,000,000/s.