This came up tangentially in another question. A camera's sync speed is the fastest shutter speed for which the first shutter fully opens before the second shutter begins to close. This is important ...
I bought a new flash last week and started using it with my Nikon D40 yesterday. The flash is the yongnuo yn-560 ii. I had a tough time to photoshoot. I was indoors and shooting on A mode. Many ...