On streets or trails, you can shoot all day when you wear the lightweight, comfortable Fastpack 350 backpack by Lowepro. It protects a digital SLR with grip and a 24-70mm f/ 2.8 or 70-200mm f/2.8 lens attached, plus 17″ Widescreen notebook. Generous storage for additional lenses such as 18-200mm, 100, 400 VR, or 70-300mm f/4, flash, and other …