This dark yellow filter gives a greater attenuation into the blue-green range than a light yellow filter. This leads to a further increase in the effect of darkening blue and lightening of yellow, orange and red. This filter is interesting for snow scenes under a blue sky, because the darkened blue shadows in the snow make the shapes of the landscape look more dimensional. Landscapes containing clouds and blue skys are rendered dramatically. Freckles and skin blemishes are diminished strongly, but lips are rendered more pale (to compensate for you may use a dark lipstick). Its filter factor is approximately 3.