Shutter speed to 1000 or more
I use Canon 5d mark 2 and I tried to take a picture with the speed light , but I can only have the whole picture with the shutter speed to 320 per second (even I reduce the aperture to f1.8 with full power light). More than that I can only have part or not at all of the image. I tried to learn shooting photos from youtube and they can put the shutter speed till 8000.
Please help me. I am new and try to learn more photography.