I am not a muscular person, but I can handhold a P645N with its 75mm (and probably with a 45mm). It may sound like a brick, but AA batteries are easy to find and mine doesn't go through them fast (maybe a set every 2 or 3 years, though I don't use the AF much). It's very comfortable to hold and use. The 645N might be more than the original 645, but I'm very happy with it.
Originally Posted by trythis