Preorders: Sigma 28-70mm at BHphoto. Adorama. FocusCamera.
Sigma writes:
Dear valued customers,
Thank you for your continued support of our products.
You may have noticed a recent press release regarding the identification of a potential issue on an early production batch of the new SIGMA 28-70 F2.8 DG DN | C. It referenced a phenomenon where the lens’s ghost reduction coating deteriorated over time, potentially leading to increased ghosting in some shooting environments.
We would like to inform you that these early lenses are in the process of being recalled from the small number of constomers affected and replaced with new ones. It only affects lenses with serial numbers prior to 55488834, regardless of mount. On all subsequent lenses the issue has been fully rectified.
Please rest assured that in the UK fewer than five customers have been affected by this very isolated issue, and the customers have, or are in the process of, being contacted to arrange a replacement lens.
We would like to thank you for your patience while we resolve the issue and if you have any further questions please do not hesitate to get in contact with the SIGMA UK team.
Thank you.