BiffBrown Posted July 16, 2018 Share Posted July 16, 2018 Good Morning. A couple of us (Affinity Photo users) have asked this question on the youTube presentation "HDR from one exposure" (https://www.youtube.com/watch?v=Ar6CZvfyFvk&feature=youtu.be). In the video, the Develop Persona is set to 32-bit. However, as a single RAW file has only 12-14 bit depth, why are you setting the bit depth to 32 bit? Regards, Biff Quote Link to comment Share on other sites More sharing options...
Staff stokerg Posted July 16, 2018 Staff Share Posted July 16, 2018 Hi Biff, From my understanding we switch to 32-bit so we have a wider range of tones/colours to work with to give the image that HDR look and feel Quote Link to comment Share on other sites More sharing options...
BiffBrown Posted July 19, 2018 Author Share Posted July 19, 2018 Thanks for the reply, stokerg. Having just applied the technique to a fairly high dynamic range photo, I must agree. I'm not sure on the how or why it works, but the highlight recovery (sky) showed that it works. However, I find that I need to change the colour format back to 16 bit RGB after the Tone mapping stage, otherwise everything's can go horribly wrong in the Photo persona (must have something to do with the linear response to curve adjustments in 32 bit). Regards, Biff Quote Link to comment Share on other sites More sharing options...
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