In the meantime, all customers can continue to use the 28-70mm F2.8 DG DN | Contemporary with confidence. Once we know the cause, we will be in touch with the small number of affected customers to advise on whether we will repair their lens or replace it, and how this process will work. We will suspend all shipments of the applicable product until the cause of this matter has been identified. Our optical engineers are working hard to identify and eradicate the underlying cause of the phenomenon, and we expect to have this resolved within a month.

If your serial number is higher than 55488834 you can be assured it is not affected by this issue. You can find the serial number printed on the side of the lens, and also on the box. Anyone who has already received a 28-70mm F2.8 DG DN | Contemporary (which has only started shipping in some countries) can check their lens’s serial number to see if it is affected. The phenomenon has been identified early, so only a small number of customers are affected. – Serial Number: serial number prior to 55488834, regardless of mount

– Applicable product:SIGMA 28-70mm F2.8 DG DN | Contemporary (for L-mount, Sony E mount) This falls short of our usual high standards so we are acting as quickly as possible to rectify the issue. We have become aware of a potential issue with our recently released SIGMA 28-70 F2.8 DG DN | Contemporary, which could lead to increased ghosting over time in certain shooting conditions. Thank you for your purchase and continued support of our products. Potential issue of ghost resistance deterioration of the SIGMA 28-70mm F2.8 DG DN | Contemporary Adorama Deals of the Day: Apple iPad Pro 11', 1TB, Wi-Fi - Only $799.00 (Save $500.00).No Brainer: Sign up for the 5DayDeal Photography Bundle 2022 $10,000.00 Giveaway.Pouncing Coyote, Rocky Mountain National Park.Amazon Prime Early Access Sale Starts Now, Huge Discounts on WD and SanDisk, More!.Leaving Room for Words, Huge Bighorn Ram in Badlands National Park.Sony Announcing New Camera on October 13th.Last Day: Amazon Prime Early Access Sale, Huge Discounts on WD and SanDisk, More!.Sony Releases Camera Remote Software Development Kit Version 1.06, Including Support for the FX6, FX3, and FX30.

Sigma lens serial number lookup