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Review – Nissin Di622 Speedlight (for Canon)

Controls are very simple and straight-forward. There are a total of three buttons at the back with 3 sets of indicator lights. The Mode button functions as an  automatic TTL/ Slave mode selector, or as a power adjustment selector. The Power button turns the unit on and off, while the LED indicators are clearly labeled to indicate power levels, pilot light, and TTL indicator.

The lack of menu and LCD allows quick selection of the different options available for the flash and it’s incredibly simple to use in dark areas unlike flash units with monitors.


The flash performs really well with a wide range of subjects. There is a hint of underexposure but not too much that it’s noticeable in most photographs. TTL system works well and is very reliable. The camera can control the flash compensation amount and you can use flash exposure lock on your camera as well to lock exposure on the Di622.

The flash recycles quickly and produces even and consistent output even at 6+fps burst frames.

One of the special features of the Di622 is the ability to work off-cam via wireless optical mode. The Di622 can be triggered either by optical means (a primary flash burst) such as a pop-up flash or another flash gun; or via TTL pulse signal coming from a flash commander/master (not IR).

In the example below, a Canon 550EX unit was set to Master with its flash power set to “Off”, meaning that the flash will only send out a pulse signal to trigger other flashes without firing a light itself. The Di622 worked reliably indoors even through line-of-sight obstacles.


Here you can see the Di622 firing off-camera via remote master. Note that no light is coming from the axis of the lens as the flash on the the camera mounted flash is only acting as a signal master, and not another flash unit.


The next photo shows the on-camera flash set to fire, while the Di622 still supplies the light from the left side of the subject.


The wireless optical (via flash) triggering works well even outdoors with obstacles. The photo below shows the Di622 placed at around 25ft from the camera and no misfires were detected in 20 consecutive shots.


If you have other multiple flashes available, you can configure the flashes to fire off each other optically and produce creative lighting for your subjects.

Do note, however, that the flash tends to enter a battery-saving, stand-by mode in 30-seconds if the flash doesn’t detect any signal while off-camera.

The Di622 will fire via optical or TTL pulse signal, but it cannot be used with a standard center-pin radio trigger system as the circuitry is designed differently.

It will not work with Flash Waves, Pocket Wizards, Skyports, Cactus, etc. Lastly, it’ll not work with IR master devices like the Canon ST-E2 and the Nikon SU-800. The flash DOES NOT meter the scene via TTL, just responds to signals for triggering.

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