• Reduces "light pollution" by blocking orange/yellow color spikes from city lights
• Improves contrast between stars and sky
• Also used to enhance fall colors without effecting green and blue colors
• Enhances red, orange, and yellow colors within an image
• Increases color contrast without unwanted polarization

Also known as a 'didymium' filter, this is used to enhance red, orange and brown subjects to give more color saturation and contrast, whilst having very little effect on other colors. It can be used in many situations such as architecture where certain building features need emphasising, or for landscapes to enhance foliage and rocky features.

With Red Enhancer Without Filter