Fall colors - Red

It's Fall and here on Kodiak all the plants are coloring up into some form of yellow, brown or red.  I tried using the 'color filter' on my camera to just capture the red colors.  In the top two pictures of red currants in my garden you can see how the filter changes the feel of the image and emphasizes the red color.  The next 2 are fireweed photos which look super red - this is the plant that is turning whole hillsides red - but the red filter actually did not capture all that much red in the images.  Maybe the 'red' is more of a 'rust brown' color?  And finally the bottom photo is of bunchberries (cornus species) - this plant has red berries AND leaves turning red too!  Patrick