Sorry for yet another filter question, new to this so still a bit confused. On some advice I was thinking along the lines of getting a Lee foundation kit to start with & a couple of Hitech 100mm ND grads 0.6 & 0.9 , & a full ND 0.9 or 1.2over time (not sure which will be more usefull for landscapes) do I need a lens hood aswell for this lot?, I noticed the Hitech holder comes with a 105mm thread for a hood, so is it better/cheeper to get this holder? or can I fit other hoods to the Lee holder, all a bit of a minefield out there.