The transition between the clear and neutral density portions of a soft edge graduated filter is less sharp and more subtle than in a hard edge graduated filter. A soft edge grad filter is recommended when the variation in light readings within a scene is less pronounced or the horizon line has any deviation, such as mountains, trees or rock formations. The soft edge grad filter is also used on occasions when the effect of a hard edge grad would be apparent in the resulting image, showing as a ‘line’ across the composition. The transition in tones, from bright to dark, should appear very natural when using a soft grad.
The 0.6 and 0.9 grad filters are two of the most commonly used grad filters in landscape photography, and are great for shooting on bright sunny days as it will even out exposure and bring out the rich blue color of the sky! The 0.6 Graduated ND Filter will reduce the exposure in the top part of the frame by 2 f-stops, and the 0.9 Graduated ND Filter will reduce the exposure in the top part of the frame by 3 f-stops.
Graduated filters are rectangular in shape so that you have the ability to manipulate where the grad line falls within the frame. If you wish to have more skyline than foreground simply move the filter down within the holder. Moving the filter up within the holder will allow for more foreground than skyline, you have ultimate creative control!