I have a Suntax ringflash for my Canon, it looks the identical to the Marumi, has the same specification, I suspect it is the same but just rebadged. I think it is a great piece of kit for the money, some of the images I have taken with it when I first got it are posted here
I've got the Canon version and previously had the Sigma one and there's nothing to choose between them really.
Bob
animal168;891717; said:seconded, i have the sigma and its a good build and ettl works a treat.
Make sure any ring flash you get has 2 tubes and can be compensated one over the other to get some decent depth in your shots or they will be flat.
Have you seen the adaptor thingy that you can get to create a proper ring flash from your normal hotshoe flashgun - thye make them to fit the SB800 for Nikon and 540EX (or something like that) for canon.