Question on Flash system

[alpinestars]

Hi,

Has anyone have experience with O-ring flash? how good is it?
i'm gonna use it for portrait shooting. will the result be good?
i'm been searching it for quite sometime, still don't know which brand is better?

any kind soul can help me on this?

 

[grantyale]

If you're talking about ring flashes - check these out:
http://strobist.blogspot.com/2009/10/ray-flash-vs-orbis-vs-alienbees-abr800.html
http://strobist.blogspot.com/2009/11/ray-flash-vs-orbis-vs-alienbees-abr800.html

The modifier-type ring flash attachments are probably better for on-axis fill than as the main light source.