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Sigma to upgrade flashguns for use with the K100D free of charge

Sigma to upgrade flashguns for use with the K100D free of charge - The update will resolve compatibility issues with the EF-500 DG SUPER and EF-500 DG ST model flashguns and the new Pentax K100D.

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Category : Portable Flash and Lighting
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Sigma to upgrade flashguns for use with the K100D free of charge
The following notice has been placed on the Sigma website:

To our valued customers,

Sigma’s EF-500 DG SUPER and EF-500 DG ST model flashguns for Pentax mount do not operate with the recently introduced Pentax K100D D-SLR camera. To overcome this, we will start supplying a free-upgrade service to our customers.

We regret any problems this may cause our customers who own Pentax K100D D-SLR cameras and we will take all necessary steps to minimize inconvenience to these valued customers.

This problem occurs with the Pentax K100D D-SLR camera only.
List of flashguns requiring update for the Pentax K100D D-SLR camera:
  • EF-500 DG SUPER Pentax fitting
  • EF-500 DG ST Pentax fitting
The update service is not available for the non-DG version (EF-500 Super Pentax fitting and EF-500 ST Pentax fitting) of above flashguns

Sigma Corporation


To receive the free upgrade, simply post your flashgun with a copy of your Pentax K100D receipt to;

Sigma Imaging UK Ltd
13 Little Mundells
Welwyn Garden City
Hertfordshire
AL7 1EW

A £5 charge applies for return postage.
View Directory Page : Sigma Imaging (UK) Ltd

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