Lesson 9 – HDR in ACR Please sign up for the course before starting the lesson. You must first complete Lesson 8 – Panorama Stitching before viewing this Lesson This content is only available to members, but you can become one today! Head on over to the Shop and choose the f.64 Elite Membership Plan. There are no obligations to stay and no messy contracts and you can come and go as you please! If you are already a member you can log in here.