Notice to customers using Sigma’s NA-iTTL type flashguns

Notice to customers using Sigma's NA-iTTL type flashguns

2007.6.18

Under certain conditions, the NA-iTTL version of the Sigma EF-500 DG SUPER, EF-500 DG ST and EM-140 DG model flashguns will not fire when used with the Nikon D40x.
To overcome this, we will start supplying a free-upgrade service to our customers.
We deeply apologize for any inconvenience this may have caused to our customers.

Sigma Corporation 2007/06/18

List of flashguns require upgrade for D40x

・ELECTRONIC FLASH EF-500 DG SUPER NA-iTTL

・ELECTRONIC FLASH EF-500 DG ST NA-iTTL

・ELECTRONIC FLASH MACRO EM-140 DG NA-iTTL

For further information, please contact to nearest authorized Sigma Service Station.

http://www.sigma-photo.co.jp/english/network/index.htm

We will post further information regarding service procedure and time-scales in due course.