Rolla Gravett
I guess you could say I am a Yongnuo big fan. I have 5 Yongnuo flashes (YN 560 I, a YN560 II, and two YN 560 IIIs, along with this YN 560 IV.) and the TX Transmitter unit. I have never had a problem with any of them and they are very powerful flashes. They are manual, but with digital cameras today, it is very easy to set your flash to the proper amount of power. Just set the flash at mid power and take a shot. Look at it in the LCD or EVF (Electronic View Finder) to see if the exposure is right. If it ts too bright, turn the power down. If it is too dark, turn the power up. That is all there is to it. If you then move in closer, turn the flash down and if further away turn it up one setting. The best part about the YN560 IV is it can act as a transmitter and a flash all at the same time. I have two YN 560 IIIs and set the YN 560 IV on the camera as the center flash, while at the same time use two YN 560 IIIs as side flashes. If you want the same settings for all the flashes, set all of them to one channel and group. In other words, if I want all of them to be at 1/64 power at a zoom level of 28mm, I set the YN 560 IV for that setting and press the Pilot button. You do have to initialize the YN 560 III flashes first. All the flashes will now be set the same way. If you want more or less power on the flashes on the side, for instance, then you need each flash in its own group. In other words, say Group A for the left flash and Group B for the center flash and Group C for the right flash. Now you can adjust them all individually Set them all on the same channel and they will all go off at the same time. If you have all three flashes set to Group A, and want more power from the center one on the camera (YN 560 IV), just adjust the setting on that camera flash without pressing the Pilot button. That flash will then have more or less power without affecting the left and right flash units. If you want all the flashes to have the same settings again, press the Pilot button on the YN 560 IV, and it will synchronize the flashes to the YN 560 IV. There are a bunch of videos on YouTube showing how to adjust or use the YN 560 IV flash. Just do a search on it. The YN 560 IV will only work electronically with the YN 560 III or YN 560 IV. If you have one of the earlier YN 560 I or YN 560 II flashes, you can opt for the RF 603 II to control those flashes electronically or set them to slave flash to control them with a camera flash or an external flash. You need one RF 602 II for each flash unit. The YN 560 IV will automatically set off a RF 603 II, but they are not controllable, and the flash will have to be adjusted manually.
