Thus, I accuse Yongnuo of providing incomplete and false information about the product. Pros below: Well, it works, brightly blooms. All sorts of compensations and bracketings are adjusted. Then it buzzes even harder. I haven't tried remote modes - I don't have such things. Its cons: The flash was disappointing. From the description of it and similar flashes, it seemed that this was some kind of "smart" gadget that adjusts its power to the selected exposure. (I even read the manual in advance. Quote: "Immediately before shooting frame, the camera automatically pre- significant very short flash, estimating exposure with sensors inside the camera, and automatically adjusts the power and duration of the flash to take the picture itself.") Fuck you! All over the face! I am a person who grew up on film cameras with a 1/25 second slit shutter. And when my digital camera with a flash offered me a shutter speed of 6 seconds, which I could not even change - I was definitely freaked out. Moreover, there was no explanation for this in the Chinese instructions. I found a normal explanation of the operation of the TTL mode only in Canon's native instructions for a similar flash. (Why the Chinese torn up the flash, but wrote their own clumsy manual is the great mystery of the Asian soul.) Everything is simple. TTL auto mode works only in program and automatic modes, and if you want a normal photo, then everything is as before - handles, handles . By the way, Canon now offers supposedly real metering "Ext. A\Ext. M external flash metering" on new flashes. So, do not rush to buy flashes. Soon the Chinese will tear it off too .