With the ability to play Red Dead Redemption on the Xbox One and PS4 now, it's possible to take screenshots from the game on the consoles. While there isn't a specific way to take snaps in the game other than the fixed character/ cut scene camera, it's still possible to take some neat snaps from the game.
Note: You can change the settings for: Brightness, Contrast and Saturation by going to the Menu-> Options-> Display. Turn off Waypoint, Map and Subtitles can be done here too.
Feel free to share yours.