High Falls, Pigeon River

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If you don't mind the rest of your UI being in greyscale, you can switch to an all-greyscale display in OS X without any extra software: System Preferences → Accessibility → Display → "Use grayscale" This will obviously prevent a side-by-side comparison of a greyscale and colour image, but you can at least quickly toggle the display mode. Unfortunately I ...


For JPEG images, you could use IrfanView. It has an option to load images as greyscale. Go to Options menu, then Properties/Settings, then JPEG/PCD/GIF. Then tick the box for Load as grayscale. This setting will be remembered for any images you load. You can use a command line option to specify a different INI file for the settings, so you could set up one ...


All changes in Adobe Lightroom are temporary until you export them. With that in mind I would use Lightroom and select all and convert to grayscale then work through the images as desired. Once done I'd switch them all back out of greyscale with an undo function.


You didn't specify an operating system, but for Linux and friends, geeqie can toggle between normal and grayscale display at a keystroke (Shift+G by default).


I'm guessing you are trying to import the Canon raw files through connecting the Nikon camera to your computer? That won't work. You need an SD card reader. (Your laptop/computer should have one?)


Unfortunately, if the files aren't showing up in Explorer, then the most likely explanation is that they were never written to the card at all for some reason. A couple of things to check before giving up: All modern Canons which can shoot RAW use the .CR2 extension, rather than .CRW. The files will be in a different folder from where your Nikon would ...


Another bash version using find: #!/bin/bash read -p "please enter file suffix for raw format (e.g ORF, NEF, CR2): " suffix find . -type f -iname "*.${suffix}" | \ while read line do lowercase=$(echo "$line" | sed "s/${suffix}/jpg/gi") uppercase=$(echo "$line" | sed "s/${suffix}/JPG/gi") if [ -f "${lowercase}" ] then rm -v "${lowercase}" ...

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