Hello @uforange , Thanks for reaching out to us!
Unfortunately, we don't have any such provision or add-on for the lens to be mounted on Azure Kinect DK.
I too have confirmation from the Microsoft Product Team on this query that we do not have this provision of Add-On mounts.
Please let us know if you need further help in this matter.
Please accept helpful responses as 'Answer', which will be helpful to others as well with similar question.