On a bright sunny day I stopped at this farm I had been watching. the sky was clear blue [pure white in B+W] adding a red filter to the camera pulled out the blue sky and added the contrast to an good neg to print. B+W Film the skies are the thing. No one wants white skies, the darker the sky the more you imply a third dimension. peace pjc
Photographic Art here an orange filer changes the sky less yet allows great detail in the foreground trees.