Summary: Purchased in May 2011 and was initially delighted although I have to say that the construction of the battery compartment, in particular, was weak. For quite a while I preferred using it to my 550EX. In May 2013 disaster struck. I was using it to provide some fill in whilst photographing the grandchildren when it just died.
Pros: Colour Screen, Easy to Use, Orientating Screen, Power Output, Secondary Flash, Versatility
Summary: Works well with fresh batteries and gives consistent light output. Screen is excellent. Easy to set up different lighting options. However, when the batteries start to run down it can be a bit temperamental with acting as master/slave or using the remote flash trigger. New batteries resolve this, but it can be a bit annoying until you get used to replacing the batteries regularly. I use rechargeables and it is fine with them.
Summary: [...] Things I found of note areFP mode if you want to use it only works in TTL not a killer point but useful to know.Little isssue with the slave mode which only works in Manual, it gets stuck and repeat flashes when it suits itself. Doesn't always happen but could be upsetting on a shoot.These work great with Nikon CLS either as commander or receiver. Even great with the pop up flash as commander.For those who don't know there is a beep for recycle.
Pros: Easy To Pack, Easy to Use, Great For The Price, Reliable, Strong Construction
Summary: Having a Nikon sb400, I wanted a flash with more power and more bounce options. The Nissin Di866 mk11 is remarkably easy use, but with plenty of user options if you need to expand. For the money, it's unbeatable value( I got mine from DWI).Compared to all the other choices, I'd buy this again.
Packed with all the features you'll need for half the price of the 580EXII!
23 February 2012
Summary: I've found the flash to be of excellent build quality - probably a little shy of the 580EXII, but it's about 95% there for half the price. Even though some reviewers say the recycle time is slower than the Canon, I can't say I've had to wait at all in my testing so far. Coming from Canon branded flashes, the menu can take some getting used to, but it's pretty easy to figure everything out without even looking at the manual.
Summary: I am using this flash for last couple of months; I also have a Nikon SB800 and have used SB900 also. I find this flash equally good compared to Nikons flag ship flash guns. In few cases it is even better than the Nikons. The menu is simply too good & easy to use. The sub-flash feature is an excellent feature while doing off-ceiling / off-wall bounce photography, the sub flash fill in just the right amount of light.
Summary: External Flash is a must buy for every DSLR user. Better to invest in an entry level DSLR and splurge on telephoto, prime lenses, flash, a good quality tripod few filters. They will make a much much greater difference in ur photo than an expensive camera ever could. People ask me if external flash is required for a camera. I ask them if light is necessary for photography. This is the best one. Don't go for third party cheap imitations.