The Red Filtered Landscape

Yellow Filter
Blue Filter
Red Filter
No Filter

A red filter is a filter that only allows red light to pass through it. When we place a red filter over the landscape image only the red light with the same wavelength as the filter reaches our eye. All other wavelengths of light are absorbed by the filter.

We see that the light from the red trees is transmitted most effectively to our eye through the red filter. If you were a scientist interested in studying the type of tree that is represented in red, you might find it useful to view this image with a red filter. By using the correct filter you can study the features that interest you without being distracted by the other items in the image.

When you have viewed all the filtered images let's discuss what we have seen.

Blue Filtered Landscape Filters Lesson Discussion