<p>The <strong>Tiffen 67mm Deep Yellow #15</strong> is commonly used for a noticeable increase in contrast with black and white films. It is also used to increase the separation of clouds and sky in black and white photography. </p><ul><li>Especially useful for clear contrast between blue sky with clouds and foreground. </li><li>Enhances landscapes, marine scenes and aerial photography with more dramatic effects than Yellow 8. </li></ul>