Flaming Pear offer a pack of free Photoshop plugins and here I share five of my favorite mono photo effects using those plugins.
Some of these mono photo effects use Photoshop plugins that specifically produce monotone results, while others convert color filters to mono to produce a different effect to the original result.
You can download these Photoshop plugins for free from the Flaming Pear website and you can use them in any image editor that is compatible with .8bf files. For this piece, I've used GIMP, along with the PSPI plugin, to execute the filters.