Hi: I'm considering the RX1 / RX1R as a travel and general family photography tool. I'll likely have a smattering of questions, but one which jumped right to the front: the shutter speed. Please correct me if I'm wrong, but the max is 1/4000 - however that drops down to 1/2000 with the maximum aperture set. Right? Plus, there is no built-in ND filter? I regularly use the far more puny Canon S95 for travel, and under moderate to strong daylight, it easily overexposes when used wide open. With the massively larger sensor, I would assume that the RX1 might experience some serious over-exposure issues if someone wished to use f2.0 in broad daylight. Can any of you who own this camera possibly comment on this? I've read so many of the on-line reviews, yet not a single one has brought this up. Thank you!