At present, FastRawViewer provides JPEG previews for Nikon's HE* and HE.FYI: those are lossy pseudo-raw formats, they don't even pass Nikon's own definition of 'RAW':
>>>
Exclusive to Nikon cameras, the NEF is Nikon's RAW file format. RAW image files, sometimes referred to as digital
negatives, contain all the image information captured by the camera's sensor, along with the image's metadata (the
camera's identification and its settings, the lens used and other information). The NEF file is written to the memory
card in either an uncompressed or "lossless" compressed form.
Dear Sir:
Dear Sir:
At present, FastRawViewer provides JPEG previews for Nikon's HE* and HE.FYI: those are lossy pseudo-raw formats, they don't even pass Nikon's own definition of 'RAW':
>>>
Exclusive to Nikon cameras, the NEF is Nikon's RAW file format. RAW image files, sometimes referred to as digital
negatives, contain all the image information captured by the camera's sensor, along with the image's metadata (the
camera's identification and its settings, the lens used and other information). The NEF file is written to the memory
card in either an uncompressed or "lossless" compressed form.
<<<
https://www.nikonusa.com/en/learn-and-explore/a/products-and-innovation/nikon-electronic-format-nef.html