Why set ratios?
A quick primer on flash photography Most portrait photographers avoid using direct light from a camera because it yields a flat face, and the lighting is often harsh. To produce more depth, a portrait photographer will either bounce the light, or use a 2-light setup…one on the camera’s right, and one on the camera’s left. One will act as the main, and the other as the fill. In order to achieve depth, the main needs to be brighter than the fill…typical ratios of main:fill are 2:1 and 3:1. 3:1 is more dramatic than 2:1 and is used in what is called “Rembrandt” lighting. Setting ratios on the ST-E2 The first step is to assign your speedlites to group A or B (you can think of this as left or right). You can assign more than one flash to a given group. This setting is done on the back of your respective speedlite. The ST-E2 can only control ratios relative for groups A and B. A note on group “C” is at the end of this review. Once you have assigned your speedlites, you can set the ratio
