Hi folks. I have 100mm Lee filters that I can use on both my Canon system and the Oly system I have. I know that my shoulder won’t stand carrying my Canon system around all day so I have decided to take my Oly. The tour leader has suggested taking both ND grad and ND in various strengths as well as Big and Little stopper equivalents if we have them. I have only a Big Stopper and the ND Grads and no other ND only filters. I have looked into buying a few screw in ones for the 12-40 f2.8 which could be done for the price of a Little Stopper. So I am after any advice that you might offer. I do some slow shutter work at the coast; I don’t go hiking in the hills with a tripod. What would you do? Have you ever been on a Light and Land Day in London?