The effect the B&W Series 5.5 040 Yellow-Orange (16) filter is quite powerful. It darkens violet and blue very strongly. It even darkens yellow-green a bit. Landscape and architectural photographs have an increased, virtually "graphic" contrast.
More dramatic effects are possible with orange filters with clouds starting to jump off the print when photographed against a clear blue sky. It should be noted that if orange still does not produce the desired effect, a red filter will give maximum boost to your contrast. And, if a polarizer is used in conjunction with these filters, the effect of a threatening storm can be achieved.
Clouds in the sky look dramatic
Because skin tones are strongly lightened in relation to the green tones of plants, this is a favored filter for nude photography outdoors - because it raises the contrast between the lighter bodies and darker landscapes