Hey friends, so I just took my wife to Seaworld (San Diego) .. and then we went to Las Vegas to see Bryan Adams. For Seaworld, I used my 70-300 mm Nikon lens, and for BA.. it was the 85mm f/1.8 (for obvious low light reasons) My major concern is, I always get so paranoid when I'm changing lenses.. like I'm handling a nuclear weapon or something! I try to change them as fast as possible to avoid any dust from getting in the camera. When I do change them though, I can't help avoid a little dust (the real tiny ones.. looks like lint) from getting onto the lens rear cap.. and I try to get it off with my t-shirt. Would it help if I had a little vaccum thing, to suck all that up before attaching it to my camera? Or am I just being really crazy? I see one little speck and I'm like "Oh damn! There goes my camera" What do you guys do when you're changing lenses? As in, to prevent dust from entering the camera. Edit: Oh, and Chip.. man that 70-300 mm lens sure 'shakes' when its at 300 mm.. this is the first time i've gotten a zoom lens so I was pretty surprised. Should I get the 18-200 mm VR?