Harbor Digital Design XT-A21 XT Flash Extender Kit

Add up to two stops of light from up to 100' away with this Harbor Digital Design XT-A21 XT Flash Extender Kit for select on-camera flashes. It features a dedicated mount that slides right onto the flash head without adhesives or straps and allows you to attach numerous accessories, such as the fresnel lens here that boosts power. Also, this setup uses a black box to limit light spill and includes a small dome for alternative lighting options.