Mount Conversion Service

Mount Conversion Services for PHOTO lenses
Sigma will convert the current mount of your Sigma Global Vision lens to another of your choice. Sigma lenses currently from the Contemporary, Art or Sports line, in Sigma, Canon, Nikon, Sony, Pentax mounts can be converted to Sigma, Canon, Nikon, Sony or Pentax*. Mirorrless lenses can be converted to Micro Four Thirds and Sony-E Mount. They cannot be converted to either an APS-C or a Full Frame format.

*Subject to mount, parts and service availability. Not all products are available in Pentax and/or Sony Mounts. Please check the specific product page to check availability in those mounts. For available Sony FE mount products click here.

The conversion service will be handled by Sigma in Japan so upon receipt, your lens will be sent to Japan to be converted to the desired mount and returned to Sigma America, who will, in turn, ship it directly to you. The anticipated turn-around time for this service is four - eight weeks.

* Shipping and Handling will be added to the MCS Price and it can cost between $25 to $100 depends of the weight and size of the product.

This service is handled only by the original purchaser of lens. If your lens was purchased in the U.S.A., the Mount Conversion Service will be handled by Sigma America only. Other Authorized Sigma Service Centers will not handle this operation. Please send your lens(es) only to Sigma Corporation America by filling out the Online Mount Conversion Service Request Form and sending the product to:

Sigma Corporation of America 
15 Fleetwood Court
Ronkonkoma, NY 11779

Mount Conversion Services for CINE lenses
SIGMA Cine lens mount can be converted to the other available mounts by SIGMA Corporation of America and Sigma Authorized Cine Service Centers. Due to the electronic contacts, required parts and necessary adjustments, mount conversion cannot be done by the end user.

The Conversion charge is $498 including parts and labor. *Subject to mount, parts and service availability. This service is not offered for PL mount lenses. Please check the specific product page to check availability in different mounts. 

Please send your Cine lens to either Sigma Corporation America or an Authorized Sigma Cine Repair Center (listed below).  Include the Online Mount Conversion Service Request Form when you send in your product.

SIGMA Corporation of America

Sigma Corporation of America
15 Fleetwood Court
Ronkonkoma, NY 11779

SIGMA AUTHORIZED CINE REPAIR CENTERS