FastRawViewer 1.6.1 Release

FastRawViewer Version 1.6.1, adding the following:

Support for the following cameras:

  • Canon EOS R5, R6, 850D
  • Panasonic Lumix DC-G100/G110, DC-S5
  • Leica M10-R
  • Sony A7S-III, preliminary support for A7C

Support for lossy formats for previously-supported cameras:

  • Canon EOS-1D X Mark III
  • Fujifilm X-T4
FastRawViewer 1.6.1


Color has been improved for the following Fujifilm cameras: X-T3, X-T30, X-T4, X-Pro3

Embedded HEIF previews are supported (Canon EOS R5, 1DX mk III), implemented in Windows/64bit and macOS non-Legacy builds only.

New Settings and Features

New Setting: File Formats - TIFF Support - Check if .TIF files are RAW.

The point of this is the following: some (old) cameras wrote RAW files with the .TIF extension. Accordingly, FastRawViewer checked each TIF file to see "is this a RAW file," which in some cases leads to false triggers.

  • This setting organizes the above-described checking procedure in the following way:
  • Do not check: consider .TIF files to be just TIF files, without suspecting them of being RAW
  • Known vendors: check the file to determine camera manufacturer, only trust a "this is RAW" verdict if the "vendor / number of colors in the file" combination fits known cases. This is the default, and it should work in 99% of cases
  • All TIFF files: same behavior as for FastRawViewer 1.5.0 - 1.6.0
FastRawViewer 1.6.1. File Format. TIF Support

New Menu Item/Shortcut: Menu - View - Minimize.

This menu item minimizes program window. Standard shortcut on macOS: Command-M, on Windows: not assigned.

EXIF panel changes:

  • Right click on EXIF panel allows to copy single value/clicked row/entire table to clipboard,
  • Image print size display. Print resolution and size units are specified via hidden configuration parameters. See PrintSizeDefaults script for details.


  • Improved handling of corrupted or truncated CR3 files
  • For macOS 10.14/10.15, drag-and-drop did not work if several files were selected for the operation.
  • macOS: fixed copy operation for locked files.
  • macOS: fixed new programs found dialog colors in dark mode
  • The application might have crashed if filtration by XMP ratings / labels was on, and the user went to FastRawViewer Preferences to disable "Use XMP" (switching off the XMP support)
  • The RAW file could be mistakenly paired with a JPEG/TIF/TIFF rather than just a JPG
  • Under default settings of "Check if .TIF files are RAW:", Canon 1D/1Ds RAW files were processed as TIFFs, not as RAW files
  • If the file name contained several dots in it, the base file name was considered to be up to the first dot instead of the last; this triggered 'xmp name conflict' errors when there were none.
  • Fixed purple cast when displaying some DNG files in Overexposure display mode
  • In some (rare/edge) cases, copy/move file(s) to subfolder moves to subfoder in user Picures folder in user profile folder.
  • Fixed display area for Fujifilm X-cameras 'crop mode 2'


Can't wait for version 2.0!

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