I have to admit that I had never thought of translating an image of Rapeseed into B&W because the whole point of the image is the fantastic mix of blue sky and yellow field. But when people make suggestions I will follow them up – and today you see the results. And certainly there is drama in the B&W, provided that during the conversion to B&W a method is used that allows the tonal range to be tweaked to ensure that ‘yellow’ remains light in tone and ‘blue’ becomes dark. The way I convert in Photoshop is to use Image/Adjustments/Black and White and either move the sliders to adjust the tonal range manually or select a preset from the drop-down list.
I’ve also attached below what one might call the half-way house version of de-saturating all the colours except yellow.