I want to take photos of fast moving objects (shutter speed usually between 1/1000 and 1/2000 seconds), outdoors at night time (probably lit with flood lights, street lights etc), and I want to be able to take at least one photo a second for about 6 consecutive photos.
There are many problems with every camera and flash combination I have tried. A big one is "banding", because of the cameras maximum shutter sync speed. This happens at quicker shutter speeds because a mechanical shutter exposes the sensor from the top to bottom through a slit in the curtains, and the pulse of light is quicker than the movement of the shutter so only a portion of the sensor gets exposed to the flash. This could possibly be avoided with a camera with an electronic shutter, a camera with a really fast shutter sync speed, or a flash with a longer pulse duration, but I have yet to find any of these that work well enough. Another problem is that the flash is often not bright enough. If the flash is turned up to maximum power, then the recharge time is not quick enough and I miss shots, so I need a flash with very high energy storage. It needs to be able to take about 6 shots in quick succession, and then it can have time to recharge. It also needs to be able to be tethered to a computer (Without EyeFi as that is horribly unreliable).
I understand that these are very difficult requirements. I am asking for a camera and flash combination that is excellent at three different things, brightness, speed, and recycle time. However, I do have a large budget. I am willing to spend up to £2000 for the combination if it can do the job.
Does anybody have any suggestions? What should I use for outdoor night time, multiple shot, high speed flash photography?