The MT-26EX-RT Macro Twin Lite from Canon uses a a pair of flashes to evenly illuminate subjects when working with a macro lens. When attached to lens, heads can be rotated up to 60? horizontally and 45? vertically and includes a removable diffuser. Illuminated dot-matrix LCD screen, make adjustments to the flash in bright- and low-lighting. White LED focus assist lamps aid in accurate focus on close-up subjects. When both flash heads simultaneously fire a guide number of 85.3' at ISO 100 is possible, and extensive manual adjustment allows settings down to 1/512 power. Heads are detachable and, using the 2.4 GHz wireless triggering system, can be positioned around subject area. Recycling time with 4 AA batteries is from 0.1-5.5 seconds.