I have not used any filter for the magic photos
But I have used:
1: CPL
2. Tripod
3. Shutter string (快門繩)
4. 反光鏡鎖起
5. Long exposure noise reduction
6. WB changed to 鎢絲燈 & 光管
In addition, I have stood at the top of mountain for 2 hours around 7:11pm (the sunset time in June)