Colour correction filter 81C plus a Neutral Density Grad Filter. Available in three graduation densities
Colour correction filters are used for colour balance adjustments and can be used singly or in combination to change the overall colour balance for viewing or printing.
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technical information PDF for colour correction filters
ND graduated filters are available in both in hard and soft edge. These filters are clear in the bottom half of the filter with a gradual transition to the ND effect in the top half. They are primarily used for light reduction in skylines of landscape shots.
Graduated NDs are also available as standard in 0.1, 0.2, 0.3, 0.6, 0.9 and 1.2 with heavier densities available to order. They are available in Soft Edge or Hard Edge varieties. Soft edge grads have a smooth transition from clear to ND. Hard edge grads have a more defined hard lined transition and should be used for longer lenses. For extremely long focal lengths a razor edge grad providing a very highly defined transition, may be ordered.