Sigma EM-140 DG Ring Flash for Sony
Electronic macro flash for Sony Digital SLRs.
Key Features
- Fully dedicated with SO-ADI
- Flash tubes can be switched on or off for creative flash control
- Ideal for close-up photography, especially medical and scientific applications
- Comes complete with 55 & 58 mm Ring adapters
- 62mm, 72mm & 77mm adapters available
- Guide Number of 14 w/ISO 100
