(Program), 
(Full Auto), 
(Aperture priority),
(Shutter priority) or 
(Manual); and / or
(Program), 
(Full Auto), 
(Aperture priority),
(Shutter priority) or 
(Manual);
Set Di622 Mark II to the camera’s hotshoe and turn on the power switch.
Di622 Mark II is automatically set for the camera’s TTL mode when ready lamp lights up.
Press the shutter button of your camera halfway to focus the subject.
Shutter speed, aperture and flash mark ( 
) are indicated in camera’s view finder.
Take the picture. Di622 Mark II is fired and the result is immediately shown on the camera’s LCD display.
When you change the focal length, The power zoom flash head of Di622 Mark II responds without delay and immediately sets its position to match the lens focal length you selected.
The flash illumination coverage of Di622 Mark II responds to the lens focal length of 24mm to 105mm (35mm film camera standard).
Joy of Flash Photography
D
F
If the subject is close(within 2 meter), turn the flash head 90° upward and pull out the 
Take a picture as usual. A blink of 
This small blink of flash is also useful when taking a picture of baby without scaring him.
TTL flash power compensation is provided in 7 steps by half Ev increment for 
Set the Flash power level select button to the power level you desire.
When Di622 Mark II shows no level indication LED is turned on, the flash power compensation level is at even (0 Ev) level as default
Press the flash power select button, by each press of + marked knob, it sets the power of +0.5 → +1.0 → +1.5 Ev. and the - marked knob sets it to 
Take a picture and the aimed subject is shown with required lighting effect by keeping the background exposure level as originally
On some cameras, the TTL flash power compensation setting is provided in its menu mode.
For portrait photography, pull out the light diffusing panel and place it over the flash window as shown in the picture. The diffusing panel makes the flash light soften and creates a lively color effect on the subject.
Since the light diffusing panel expands the lighting area, it covers the range of 16mm focal length lens.
DI622 specifications
The Nissin DI622 is a versatile and powerful external flash designed for photographers who seek high performance and flexibility in lighting their subjects. Compatible with a wide range of camera brands, including Canon, Nikon, and Sony, the DI622 is particularly known for its user-friendly features and advanced lighting technologies.One of the main highlights of the Nissin DI622 is its impressive guide number of 62 (ISO 100, at 200mm), which provides ample illumination even in low-light situations. This power enables photographers to effectively illuminate subjects at greater distances, making it suitable for various photographic scenarios, from portraits to events.
The flashhead is fully tiltable and swivelable, providing the possibility of bouncing light off walls or ceilings for softer and more natural-looking results. This feature is especially useful in indoor environments where direct lighting could create harsh shadows. Additionally, the DI622 incorporates a zoom function that can adjust the flash coverage from 24mm to 105mm, allowing for greater control over the light spread depending on the focal length of the lens being used.
Another impressive aspect of the Nissin DI622 is its high-speed sync (HSS) capability. This technology enables synchronicity with the camera shutter at short speeds, allowing photographers to effectively use flash in bright environments to achieve better subject isolation and creative effects. The flash also supports multiple flash modes, including TTL (Through-The-Lens) metering, manual, and stroboscopic modes, granting users a wide array of creative possibilities in how they illuminate their scenes.
The flash is powered by four AA batteries, with an efficient recycle time that can be as short as 4 seconds, ensuring that photographers can capture fast-moving subjects without missing a beat. The built-in LED modeling light provides a preview of how the flash will illuminate the scene, enabling better preparation before shooting.
Moreover, the Nissin DI622 is constructed with user-friendliness in mind, featuring a clear LCD display for easy adjustments and monitoring of settings. The relatively compact design makes it portable, making it an excellent choice for on-the-go photographers.
In summary, the Nissin DI622 stands out with its combination of power, versatility, and user-friendly features. With advanced technologies such as high-speed sync, TTL metering, and a flexible light-shaping design, it caters to both amateur and professional photographers looking for reliable and effective lighting solutions.