Flash Sync

https://photography.tutsplus.com/tutorials/getting-to-know-your-flash--photo-6018

https://www.youtube.com/watch?v=NngJDLEfPz4

https://www.youtube.com/watch?v=MUwfwFYl2MY&t=389s

https://www.youtube.com/watch?v=ZR4uktQmH_4

https://www.youtube.com/watch?v=pU9fb4U9jhc&t=184s (Best Trigger)

https://www.youtube.com/watch?v=Rs6WzeAzRE4

https://www.youtube.com/watch?v=CJw0ibXv8JM

https://www.youtube.com/watch?v=is9JlOQCQ8U

https://www.youtube.com/watch?v=82joQBnu_Hc&t=16s

https://www.youtube.com/watch?v=sWPzGFruCJE

https://www.youtube.com/watch?v=HuCUihZnG1I

https://www.youtube.com/watch?v=G7PczMj7oaE

https://www.youtube.com/watch?v=8SPW3T1_pUM