Notice to Sony a77 and a65 owners using Sigma's Sony fitting lenses

After thorough investigation, we have ascertained that auto focusing does not work properly when some Sony fitting Sigma lenses are used with Sony a77 and a65 interchangeable lens digital cameras. To overcome this, we will be supplying a free update to our customers. This phenomenon will only occur with the combination of any lenses listed below and the Sonya77 or a65. Future production of Sigma lenses for Sony fitting will be fully compatible with these cameras.

We deeply apologize for any inconvenience caused to our customers.

 

Phenomenon

When shooting with a Sony α77 or α65 camera, auto focusing does not work properly.

 

Lenses requiring the modification

  • 10-20mm F3.5 EX DC HSM
  • 17-50mm F2.8 EX DC OS HSM
  • 17-70mm F2.8-4 DC MACRO HSM
  • 17-70mm F2.8-4 DC MACRO OS HSM
  • 18-50mm F2.8-4.5 DC OS HSM
  • 18-125mm F3.8-5.6 DC HSM
  • 18-250mm F3.5-6.3 DC OS HSM
  • 50-200mm F4-5.6 DC HSM
  • 4.5mm F2.8 EX DC CIRCULAR FISHEYE HSM
  • 10mm F2.8 EX DC FISHEYE HSM
  • 24-70mm F2.8 IF EX DG HSM
  • APO 50-500mm F4.5-6.3 DG OS HSM
  • APO 70-200mm F2.8 EX DG OS HSM
  • APO 120-400mm F4.5-5.6 DG OS HSM
  • APO 150-500mm F5-6.3 DG OS HSM
  • 50mm F1.4 EX DG HSM
  • 85mm F1.4 EX DG HSM

 

Support for this issue

We will be offering firmware update service for above lenses free of charge. Please contact your nearest authorized Sigma Service Station for further details.

 

Mark for compatible lenses

The following sticker is put on the gift box of compatible lensesFuture production of Sigma lenses will be compatible with these cameras. The following sticker is put on the gift box of compatible lenses.

 

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

Official info source (20111.10.14)

 

Notice to Sony α33 and α55 owners using Sigma's Sony fit lenses

Sigma's lenses for Sony mount may have a potential aperture operation problem when used with the Sony α33 and α55 Interchangeable Lens digital cameras.

To overcome this issue, we will be offering, free of charge, a modification service to our customers who have purchased a Sony α33 and α55 and own Sigma lenses for Sony mount.

This phenomenon will only occur with Sony α33 and α55 cameras. Future production of Sigma lenses will be fully compatible with these cameras.

We deeply apologize for any inconvenience caused to our customers.

 

Phenomenon

When shooting with a Sony α33 and α55 cameras, the aperture may not work properly and a “camera error” message will be displayed on the camera.

 

Lenses requiring the modification

All current Sigma's lenses for Sony mount.

* For lenses discontinued several years ago, a modification may not be available. For further details, please contact your nearest authorized Sigma Service Station.

 

Support for this issue

We will be offering a modification service for our current range of lenses free of charge. Please contact your nearest authorized Sigma Service Station.

 

Mark for compatible lenses

The following sticker is put on the gift box of compatible lensesFuture production of Sigma lenses will be compatible with these cameras. The following sticker is put on the gift box of compatible lenses.

 

Official info source (2010.9.10)

Important note

Since Sigma published this advisory notice, our lens database is modified by adding SLT compatibility field.

We had no other choice but marking all older Sigma lenses as NOT compatible with SLT cameras.

However, many users reported no issues at all with older Sigma lenses and SLT cameras.

Unfortunately, there is no guarantee that a particular lens+SLT camera model will work and each lens camera combination should be tested before purchase.