The elephant bull is on the far bank of the Sundays River. The flanker breaks away down the touchline at the opposite end of Loftus. A fish eagle sits on a dead branch three hundred metres out across the Vaal. In each case the photograph is right there in front of you — and completely out of reach of the lens on your camera.
This is the problem an ultra-telephoto zoom lens exists to solve. It pulls distant subjects close enough to fill the frame, which matters enormously in South Africa, where the best subjects are so often ones you cannot approach: dangerous, moving at speed, or protected by park regulations that quite rightly keep you inside your vehicle.
This guide covers what an ultra-telephoto zoom lens actually is, the scenes it suits best here at home, how it behaves optically, how to get sharp results from it, and what to look for when you buy one.
What Is an Ultra-Telephoto Zoom Lens?
Photographers generally describe any lens from roughly 80mm upwards as a telephoto. Once the focal