All photos

Amy Clark

A sandy beach with waves coming in to shore

A sandy beach with waves coming in to shore, Ultra
A sandy beach with waves coming in to shore, Standard

Photo by Amy Clark on Unsplash · Original

Drag the seam — left of it is the SDR base (dynamic-range-limit: standard), right of it is the same JPEG decoded as an Ultra HDR gain map. Both use local long-edge-capped JPEGs so resolution and codec match exactly.