Sigma offers Rear Filter Holder FHR-11 installation service
The service is available on the Sigma 14mm f/1.8 DG HSM Art lens for Canon.
The Rear Filter Holder FHR-11 allows you to use a filter sheet with the Sigma 14mm f/1.8 DG HSM Art lens for Canon. Available from the end of September the filter has a suggested price of £39.99, or you can purchase the filter and pay for the installation service for a total of £59.99.
For more information, please visit the Sigma website.