The ringlight for the autofocus Nikon SLRs, the SB-29 has the ability to give full TTL flash illumination with ratio lighting, modelling flash and more.
Main unit can be attached to the controller unit to make compatibility with lenses with rotating fronts
Multiple combinations of flash outputs: Flash output of either or both flash modules (left or right) can be selected; Flash output balance of both modules (left : right or right : left) can be set to 1:4
Modeling flash capability
Power stand-by mechanism
Safety-lock system
When attaching to the 105mm f/2.8D Micro-Nikkor, use the 62mm Adapter Ring (not the 52mm).