It is possible to take black and white photographs with one’s camera. However, if one is shooting RAW, as is the case here, the black and white will only be visible as a preview. This of course, will vary from camera to camera and here I am discussing a CAnon model, the EOS 5D Mark 11.
For one’s camera to “see” black and white, one’s needs to enter the Menu on the back of the camera; the menu is revealed in the LED screen where the second red menu has a listing called Picture Style. By scrolling down to the menu item using the dial on the back and then using the centre button of the dial to enter the menu, one comes across a Monochrome setting that can be selected via the dial before being selected with the info button.
This monochrome setting can be further customised by changing the settings on one of four different controls (sharpness, contrast,that are visible as scales.
Once the monochrome settings have been selected and implemented, then the Live View will appear in black and white; once the shutter has been pressed then a preview of the image made will appear on the back screen in black and white. When the images are downloaded into a programme such as Lightroom they will appear initially as black and white images though once in the system, they are shown as colour.
If made with a RAW file, the file will always revert to colour; black and white previews will be there for reference, to enable one to see the scene in the more formalist light of black and white.