1. Import the shot material into the computer, open Final Cut Pro, and create a new project, with the format changed to 4K and the rate selected to be 24P.
2. Click Preferences-General-Time Display in the upper left corner of Final Cut Pro to change it to Frames.
3. Step import material, and then right-click to select "change the length of time".
4. Enter "1" in the preview window, and then press Enter.
5. Select all the materials and right-click to select "New Compound Clip".
6. Enter a name in the pop-up window.
7. The final export is completed.