There is no way to create a High Dynamic Range images if you are only using the Mac Photos software. The only solution I have found is to use a third party software like the free HDR Efex Pro 2 from the Google Nik Collection with the help of the External Editor for Photos. It is not an easy task… This is why I created this video. Feel free to watch if you want to learn how to import and export your pictures in order to create and unleash the power of HDR photography!
Manuel Martel Photography 