The cokin p series p072 centre spot wide angle grey 1 filter can allow the portrayal of an object to be diffused in different coloured surroundings and has a clear spot in the centre which draws attention to the subject this filter comes in two grades p072 and p073 both grades fundamentally have the same effect however the p072 is a milder diffuser for a gentler effect whilst the p073 has a greater effect this filter is intended for use with wide angled lenses the effect g