If mine ever arrives Ill let you know.
I bought a sigma EM-140 last week and it still hasnt turned up.
I was watching some Bryan Peterson videos on The tube and he was using one with a sigma 105mm macro and getting sone pretty nice results. F/22 1/250 and let the flash TTL work it out. Worked well for him!
Depends what you are photographing. Still life - tripod, insects etc. ring flash.
Also consider a small lumiquest softbox off camera. ring flash works, but the light is very flat.


I've just invested in an MPe-65 lens and MT-24 flash unit, but before that I have always used a cheap Marumi ring flash at £99. Loved it and had some great results. Just sold it on here for £60.
Gareth