What is the fastest synchronization speed between Yongnuo rf603 and Canon 430ex2 flash?

Bug photography studio answers for you. First, I don't recommend the landlord to buy Yongnuo. At the beginning, I also struggled for a long time about the price difference of 1000 yuan, but I actually used it. Yongnuo was a complete failure. I think it is ok to be an off-plane flash, but it is not recommended to be the main light. There are many associates around us who seldom use Yongnuo. Basically, there will be minor illnesses within a year. Of course, our application intensity is also relatively strong. Secondly, I don't know if there is any equipment with high-speed synchronization in the main fuselage of the building. If you start high-speed synchronization with the 430, you can theoretically reach 1/8000s, but at least I can guarantee that there is absolutely no problem within 3000, because the 430 itself also supports high synchronization, so the cost performance is very high. If the landlord does not need high-speed synchronization, then the limit of the flash is undoubtedly 1/250 s, and the two flashes are the same. This mechanism has nothing to do with light.