New here but not to photography. Looking for a ring flash for dental work to use on a m4/3 camera that doesn't dwarf the camera. Does such a (mini)beast exist? Hoping not to use an LED. Existing DSLR cameras are overkill for this; too bulky and heavy. The photos are often taken with one-handed because one needs to hold a mirror or retractor as well. Tried the P&S options and they aren't that great. Thanks!