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  1. Dear James, Thank you very much for the instruction and it worked beautifully! I think I can use the workaround for now. Hopefully the developers will implement it in the near future.
  2. Dear James, Yes, I could verify that the TIFF file you attached (16bitGray copy.tif) can be correctly opened as 16-bit grayscale in both Affinity Photo and Affinity Designer. Detailed instructions will be truly appreciated.
  3. Dear Walt and James, Thank you for the valuable information and inputs. I really wish there is a way to "tell" Affinity Photo that it is grayscale upon opening. I can manually change the color format after loading, but then the image has already lost the gray level resolution. Photoshop, Image J and GIMP etc. can somehow correctly recognize it as 16-bit grayscale.
  4. Dear Gabe, Thank you, here is an example. 16bitGray.tif
  5. When I tried to open 16-bit grayscale TIFF files in Affinity Photo (Mac), they are always opened as 8-bit RGB. Is there any way to force opening as 16-bit grayscale?