The diminutive Nissin i40 packs a lot of power into a small form, and is an ideal flash for a small DSLR or CSC mirrorless camera. Rather than complicated push-button commands it has two rotary dials which control all the functions, making it intuitive and quick to operate. A full complement of features include a 24-105mm power zoom head with flip-out ultra-wide diffuser panel, manual power settings from full to 1/256th power, a built-in 9 step LED video light, and operation wirelessly or slave mode. As a result it's received many rave reviews.