Sigma EM-140 DG NA-iTTL flashgun firmware update

Notice 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.

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