B + W 77mm #022 Multi Coated Glass Filter - Medium Yellow #8

The main purpose of this filter is to enhance image quality in photography by creating subtle differences between green tones and enhancing the natural rendition of the sky. It's also used in portrait photography to tone down skin blemishes and ruddiness, and intensify blond hair.

A filter factor of approximately 2 means that the filter reduces the amount of light entering the camera lens by about half, allowing you to manipulate the color balance and tone of your images.

A multi-coated filter has multiple layers of coatings that help reduce reflections and glare. This results in improved image quality, with sharper and more detailed images and better color accuracy.

While this filter can be used in various types of photography, it's particularly recommended for landscape, foliage, and portrait photography due to its specific color and light filtering properties.

Glass filters, like the 77mm #022 Multi Coated Glass Filter - Medium Yellow #8, are typically higher quality than plastic filters. They are known for their ability to produce sharper, more detailed images with better color accuracy.