560 II Flash Youngnuo

I looked for a good cheap flash. The guide number of the flash is 42NG to 50mm and 100iso; 39NG for 35mm to 70mm 100iso and 50ng 100iso post doc manufacturer. This flash unit on the camera flash shoe and remotely. The S1 and S2 modes allow to use remote with only a master flash (this may be the small flash of your camera (currently tested inside)). This means that if someone else is using a remote flash with your Yongnuo YN560 II is in S1 or S2 mode, it will fire (a tip equivalent to turning the flash of ways that the receiver is facing your master flash). The connector on the side they call PC is make a decision synchroflash (so can be wired with a cable). The other connection is external power. I was pleasantly surprised by the Multi mode used to make multiple images on the same as a stroboscope (you can adjust the speed and the number flash, Example 3 flash shots at 1 / 10th of a second, or 3 shots flash in 1 second). 2 negative things (the sound a bit strong close (for the entourage) but you can cut it and adjusting the focal length is done manually (but you can use it with a shorter focal length for example 35mm on flash 50mm or more on your DSLR.) You can also use several slave. Very pleased with product and especially at this price :)