Light is a precious commodity in close-up and macro photography. The closer you get to your subject, the more light you lose through lens extension. Move to within inches of the subject and your camera or body may block the existing daylight. Also, the closer you get, the more depth of field you lose, so it would help to stop down. All of this translates to a need for additional light—in other words, a supplementary light source. What’s more, when shooting live critters and wind-blown plants, we may also need that light source to freeze subject movement, or at least provide shutter speeds that are fast enough to contain movement. To meet these needs, I’ve often turned to a macro ringflash and, alternatively, a macro twin flash. An economical alternative is an LED ringlight.