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Today's lenses are significantly lighter and smaller than those from even a few years ago. So if you're shooting with an older lens that's weighing you down — literally — check out the newer options. Some lenses retract into a more compact form when you're not using them, as shown in Figure 1-11.

For a super-zoom lens, look for a model that has a lens-lock feature. The lock holds the lens in its “unzoomed” position when you’re not using the camera. Without the lock, the lens may be subject to lens creep, which means that the lens extends under its own weight when the camera is pointed down, such as when it’s on a traditional camera strap, hanging around your neck.

FIGURE 1-11: Some lenses collapse when not in use, taking up less room in your camera bag.