Twilight Grad - Twilight colour graduated filter is a combined filter graduated from darkish blue at the top to a pink horizon.  It provides a cool image ideally suited to creating a late afternoon/early evening twilight effect

Sunset Grad - The Sunset colour graduated filter is a multi-colour filter blending red-orange-yellow.  Designed to give a dramatic sunset effect.

Blue Grad - The Blue colour graduated filter creates a realistic cooling blue effect.