This flash, light and compact, space-saving, is a useful accessory for travel; with articulating head height at 90 ° and its possible release at high speeds, it may advantageously replace the embedded flash is lacking on Canon 5D. It is convenient for occasional use, light in the bag and on the device, useful in many circumstances. However, do not count on him for indirect lighting at receptions or to the portrait because it requires a swiveling head in all directions (in this case, you need a flashgun). I would conclude that the use of this flash comes down to fill the void of the Canon 5D for use a little advanced.