Do I need to set up the flash RT I just bought?

Canon's flash 600EX-RT has been on the market for some time. As Canon's flagship flash, 600EX-RT is compatible with E-TTl II, E-TTl and TTl automatic flash and external flash metering system, and can be used as a master or slave when shooting wirelessly. 600EX-RT has both optical wireless transmission flash and wireless wireless transmission flash shooting function, and RT stands for wireless radio frequency TTL function.

As a flash set on the SLR, it is a smooth light effect in light use. What are the characteristics of this light?

The front light is also the front light, which removes most of the shadow of the subject. In the case of steady light, the scenery is bright, colorful and clear. Moreover, the illumination of the foreground and background is consistent, and as long as the exposure is correct, good results can be achieved. Sunshine photography, the picture is dominated by the bright part of the object, the shadow area is very small, and the contrast between light and dark is relatively small, which is conducive to the performance of bright colors. Therefore, smooth photos have simple colors, bright colors and good transparency. The smooth shooting picture is relatively flat. When the sun shines, all objects are clearly displayed in front of people, and the three-dimensional sense and spatial layering of the scene are poor. The color of the picture is bright, but the subject itself is darker than the background wall, and because the distance between the subject and the wall is too close, the wall is brighter than the subject, and the subject cannot stand out. In this case, we can only keep the subject away from the white wall and highlight the subject by blurring the background.