I have used both Photomatix and Lightroom in the past to produce HDR images using 3 or 5 images and satisfied with the results. Now I have a EOS 90D camera and trying to figure out the method and justifyabilty of using one raw image instead of multiples. There are times when you cannot take multiple images of a scene like street shots and I wondered if I can apply HDR to a situation like this. using the 90D's single shot HDR option. I just need to learn how. Cannot find anything in the online manual. Anybody help?