Just spent a few days in Devon and had a day on Dartmoor, what a fabulous place for photographers! This shot was taken with a Panasonic GH5 fitted with the Leica 12-60mm lens set at 12mm (24mm equiv. on a full frame camera). The picture was shot in full colour and converted to B/W in Photoshop with the Silver Efex Pro 2 filter. The beauty of digital photography is that you can manipulate the photograph at any stage after taking it. Most digital cameras do have a B/W shooting option, avoid using this as you will have far more control in your editing application.
Tree on Dartmoor
As captured by GH5 camera