Sigma EM-140 DG NA-iTTL flashgun firmware update
Wednesday, March 15th, 2006Notice to customers using Sigma’s EM-140 DG NA-iTTL type flashguns. The Sigma Corporation is pleased to announce firmware update that bring refined performance to the Sigma’s EM-140 DG NA-iTTL flashgun. This free firmware update service will be given to customers from March 14, 2006 onwards.