Now THAT is a macro ring!

[ColoradoSkier]

http://www.hannueskelinen.com/DIY.jpg

Specs at http://www.flickr.com/photos/hannueskelinen/449354811/ along with a sample of the lighting it provides.

[satan]

DAMN!
That's what that was - A few years ago I built a crazy-assed fixture that held 2-concentric fluorescent rings (6.5" and 12" IIRC) and had a 1/4" captive stud -- at the time I thought is was to retrofit some other light fixture

Nice trick - Knowing what it was (now), I wish the guy would'a let me put the bright-aluminum rings on it (I was thinking to add one for the outer tube - for protection)

[ColoradoSkier]

Here's another light ring...

http://www.noestudios.com/photo/ringlight/res/ring_front.jpg

and how it was built...
http://www.noestudios.com/photo/ringlight/

[MReetz]

Whats the power source? 110?

[Jocko]

These look more like cheap ring-flashes than a macro flash. I wonder if the light ring is too broad to be very usefull in macro photography.?.?