Of course, if your camera has a smaller sensor and you like to shoot at a lot of wider angles, the opposite would also be true. Now that’s some serious bang for your buck! In some cases, your 200mm lens might behave like a 300mm lens. The bottom line? Depending on your camera body (see the “Crop factor” sidebar), you may be able to get the close-up shots you’ve always dreamed of without having to pay for a super telephoto lens. Such a lens is designed and optimized for only a single focal length-in this case, 24mm.Ī range of numbers, expressed with a dash such as 70–200mm, indicates a zoom lens, capable of different focal lengths-in this case ranging from 70mm to 200mm. The numbers on a point-and-shoot lens mean the same thing, but the scale is radically different, so don’t panic if your lens indicates a focal length range of 6–22.5mm (the equivalent of roughly 28–105mm).Ī single number, such as 24mm, represents what’s known as a prime or fixed lens, meaning that it’s not capable of zooming.
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