RackFocus

When selecting portrait photos，Suggest using a large aperture（如 F1.2）or telephoto lens（e.g. 200mm）Captured works，The background blur effect is better，Can better match the "Focus Transition" filter to present a sense of layers and impact。
**Core Information：**
* **Subject→Background**：The focus smoothly shifts from the subject to the background，Enhance the narrative sense of the image。
* **Background→Subject**：The focus shifts from the background to the subject， highlight the subject 。
The "Focus Transition" filter through smooth focus switching，Gives the video a cinematic feel and visual focus。