Sigma F30S16 58mm Macro Flash Adapter Ring - Product Features
- Allows you to attach the EM-140 DG Ringlight Flash to be mounted on any lens with 58 millimeter filter threads
- Ideal for close-up photography, especially medical and scientific applications
- Compatible with digital and 35 millimeter SLR cameras of all popular manufacturers
Sigma 55mm Macro Flash Adapter - Product Features
- 55 millimeter adapter ring for the Sigma EM-140 macro flash unit