Cokin P121M Gradual Grey G2 Medium ND4 Filter

Cokin graduated ND filters are just the ticket for landscapes where the sky is particularly bright -and thus susceptible to being over-exposed - or when you want a darker, moodier sky. The filter retains normal colour balance across the visible spectrum, with a progressive graduation from the middle to the top of the filter. For those familiar with the Cokin line, the P121M filter has the same colour as the 121 filter, but a lower tone.

Price: 30.99 from Wex Photo Video