Who Needs An Image Stabilizer?
Before getting into specifics, it’s worth appreciating the value of any camera-shake compensating system. Whenever we take a photo while hand holding a camera, our natural body tremors produce some shake. That’s not a problem when using fast shutter speeds such as 1/1000 sec. Even if you shoot while horseback riding, the extremely short exposure time should produce a sharp photo. Of course, camera shake will degrade image sharpness at longer shutter speeds. Very few people in the world can hold a camera perfectly still for very long. And if the camera is not perfectly still, the image projected to the sensor will be moving during the exposure; that will produce a blurry photo. The longer the focal length of the lens, the more obvious the blurring will be. That’s because a telephoto lens amplifies the effect of camera shake in addition to magnifying the subject. A sturdy tripod is the best solution in low light but you won’t always be carrying this accessory. As well, a tripod is prohib
