Short Telephoto, Telephoto and Super-Telephoto Lenses

Telephoto lenses bring the world closer. They let you photograph a bird across a lake, a player on the far side of a field, or a face from a few metres away without getting in the way. But long lenses also bring challenges: they magnify camera shake, they are often heavy, and they need careful technique. This lesson explains the three telephoto families, what each is best for, and how to get sharp results.

What is a telephoto lens?

In everyday photography, a telephoto lens means a lens with a longer focal length than a standard lens, so it shows a narrower view and makes distant subjects look bigger, as explained in focal length and angle of view. (Strictly, "telephoto" names an optical design that makes long lenses physically shorter, but photographers use the word for long lenses in general.)

Remember:Boundaries vary between sources. On smaller sensors, shorter lenses give the same views; for example a 200mm lens on APS-C frames like about 300mm on full frame, as explained in crop factor.

What telephoto lenses do to a photo

• They magnify distant subjects, so you can fill the frame without going close.
• They show a small slice of the background, which makes it easy to choose a clean, simple backdrop.
• They make background blur easier, because at the same framing you are further away and the small slice of background is magnified, as you learned in depth of field and subject separation.
• Used from a distance, they make far objects look large behind near ones. This is often called compression, and its real cause is explained in compression.

Short telephoto: the portrait range

Lenses around 85–135mm are favourite portrait lenses. They let you stand a comfortable few metres from your subject. From that distance, the nose, eyes and ears are at similar distances from the camera, so facial proportions look natural, unlike a wide lens used close up, as explained in wide-angle and standard lenses. Their narrow view also makes backgrounds easy to simplify.

Telephoto: the action and events range

Lenses from about 135 to 300mm, especially 70–200mm zooms, are the workhorses of sports, weddings, concerts and wildlife you can get reasonably near. They let you stay out of the way while still filling the frame. A 70–200mm f/2.8 is one of the most common professional lenses because it combines reach with a bright aperture for indoor events.

Super-telephoto: reaching far

Lenses of 400mm and more are used when you physically cannot get closer: birds, shy animals, or sports from the sidelines. Large prime super-telephotos with wide apertures are very expensive and heavy, so many photographers use telephoto zooms such as 150–600mm or 200–800mm, which are lighter and more affordable but usually have smaller maximum apertures.

Teleconverters

A teleconverter (also called an extender) is a small optical unit that fits between the camera and the lens and multiplies the focal length. It is a cheaper way to get more reach, but it has costs:

Teleconverters can also reduce sharpness and slow autofocus, especially the 2× type and in low light. They work best with lenses designed to accept them, usually high-quality telephoto primes and zooms. Check that your lens is compatible before buying one.

Getting sharp results with long lenses

Long lenses magnify everything, including your mistakes. These habits help:

1. Use a fast enough shutter speed. Long lenses magnify hand movement; follow the guidance in sharpness from capture, and remember moving subjects need even faster speeds.
2. Turn on stabilization if your lens or camera has it.
3. Support the lens. Hold it under the lens, not by the camera body; use a monopod or tripod for heavy lenses, attaching it to the lens's tripod collar if it has one.
4. Watch the air. Over long distances, heat shimmer and haze can soften detail, especially on hot days. Shoot early or late in the day, or get closer if you can.
5. Use continuous AF for moving subjects and a focus limiter switch, if the lens has one, to stop the lens searching through distances you do not need.

Common mistakes

• Shutter speed too slow: the most common cause of soft telephoto photos.
• Holding a heavy lens by the camera: it strains the mount and shakes more; support the lens itself.
• Shooting through heat haze: no lens can fix shimmering air over a hot road or field.
• Expecting teleconverters to be free: you pay with light, sometimes sharpness and autofocus speed.

How professionals use telephotos

Portrait photographers choose a short telephoto to keep faces natural and backgrounds clean. Sports and event photographers live with a 70–200mm and often a longer lens on a second body. Wildlife photographers plan around light and distance, use fast shutter speeds and solid support, and learn animal behaviour so they are ready before the action. In every case, they pick the focal length for the framing they need from the place they can stand.

Practical examples

Key points

Frequently asked questions

Conclusion

Telephoto lenses magnify distant subjects, simplify backgrounds and keep you at a comfortable distance. Choose short telephotos for portraits, mid telephotos for action and events, and super-telephotos for reach, and support them with fast shutter speeds and solid technique. Next, you will meet macro, fisheye and other special lenses.

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