1) Walimex Pro Macro Ring Flash
2.) Orig. Viltrox JY-670 Macro Ring Flash, GN-14 ring Professional Macro Flash for Canon Nikon Olympus Panasonic Pentax Sony
3.) Dörr DAF-14 Ringflash for Canon E-TTL II autoflash
4.) Nissin MF18 Macro Flash for Canon E-TTL
All strikes have advantages and disadvantages and I stayed at Nissin.
This flash here from Dorr (should be identical to the Bilora) I do not like. I have a 650D and an old 100mm / 2.8 Canon Macro. That lightning can adjust anything. Sure, I knew that before and it does not lead to deduction of points. The lightning was striking often next to what the auto exposure was concerned. I lack a lamp in order to focusing can. The other ring flashes have this lamp. Annoys me the screw-fastening at the lens. I have handled so that I screwed the lens on the flash and not the flash to the lens. That's a bad design, and sometimes just a change of objective is not therefore possible. The battery compartment is rickety, the lid loose. To insert the batteries you have to with one hand push in the batteries and push with the other hand the cover over it. Somehow a bit cumbersome.
I do not know, is suitable for whom the lightning. Who has real Ringblitz ambitions, which will not be enough without adjustment of flash. The flash is what people who need time off and a ring flash, but take pictures to 95% without ring flash. The price-performance ratio, however, is really good. Therefore, he also gets 3 stars. Strange is also possible to tilt the head of the control unit, to which the cable is secured. Why is this good?! ??
The Walimex and Viltrox Flashes (670) offer more setting (eg lightning halves in their power controllable light to focus), which are purely manual flashes. However, they are easier to handle for my taste, as the automatic flash from dried / Manfrotto, where you never know what he actually does. They are also valent better fix on the lens and the battery compartment also does not give rise to nagging. However, in my Walimex flash equals the upper lamp dropped when I used it the first time, which I did not find so reassuring.
For those who want to invest a little and have some know Aperture and exposure times I recommend the Viltrox (currently costs less than 100). The Walimex is almost identical to Viltrox, but he lacks the illuminated LCD display (at any rate in my so - there may be different models with the same name so it seems.), It is more expensive (about 160) and there are no manual and storage bag. The dried I recommend if you want to just keep it and set not big. It currently costs about 85). The Nissin MF18 Macro Flash for Canon E-TTL 4 LEDs.Batt.Magazin plays in a different league, so it is mentioned only marginally. It can be operated manually and automatically, and has otherwise also all sorts of features that you could wish for, if you slightly more likely photographed with ring flash and wants settings. He is basically a cheaper alternative to branded ring flash (for me the Canon Ring Lite MR-14 EX ring flash for approx. 550). The Nissin cost around 275th Who is willing to spend more money, which I put to Nissin necessarily fond.