The B+W 105mm Green Filter is ideal for nature photography.The B+W 105mm Green Filter has increased red attenuation which differentiates it from the yellow-green filterThis B+W Camera Filter has the tendency to darken red objectsThe B+W 105mm Green Filter is useful in object photography where darker reds and lighter greens are more preferredThe B+W 105mm Green Filter photographic filter comes with a filter factor of 3