“The perspective of an image is controlled by the distance of the lens from the subject; changing the focal-length of the lens changes the size of the image, but does not alter the perspective. Many photographers overlook this fact, or are unaware if its significance.”

— Ansel Adams; Examples: The Making of 40 Photographs


This sums up the whole zoom lens issue. If you fully understand this concept, you may use a zoom lens to your heart’s content, with the full knowledge that it’s not a limiting factor in your work.