Due to popular demand, Sigma have decided to offer a firmware upgrade
for these three flashguns that were previously incompatible with the new
Nikon D200 digital SLR camera.
Currently the flashguns are not listed as compatible with the D200 on
the Sigma website, this free firmware upgrade will remedy this allowing
Service procedure and timescale details have not yet been announced but
will be in due course.
Firmware update notice for Sigma's Nikon fit flashguns (NA i-TTL
To our valued customers,
Responding to enquiries received recently regarding the Nikon NA-iTTL
version of the Sigma EF500 DG Super, Sigma EF500 DG ST and the EM140 DG
when used with the Nikon D200 DSLR. We would direct you to the
compatibility chart on our website which states that these flashguns do
not support either the D2X, D2H or D200 i-TTL system.
To overcome this, we will be supplying a free-upgrade service to our
customers. This free upgrade aims to respond to the demand of our
customers by providing greater compatibility with Nikon fit flashguns
(EF-500 DG SUPER NA-iTTL, EF-500 DG ST NA-iTTL, EM-140 DG NA-iTTL).
This firmware update service will allow the above mentioned flashguns
to be compatible with the i-TTL systems.
We will post further information regarding service procedure and
time-scales in due course.