A teleconverter is made up of multiple optical elements. The total number can vary depending on the optical design and focal length multiplication factor of the teleconverter. The larger the multiplication factor and the longer the teleconverter, the larger the physical size and weight. Since most teleconverters are designed to be used with several different lenses, their optical design usually incorporates standard lens elements without optical corrections, which unfortunately results in increased optical aberrations , such as lateral chromatic aberration.
The elements might include aspherical elements into their teleconverter design. When you use a 1. This will double the focal length, but the image quality might not be as excellent. If you want a more intermediate teleconverter, the Nikon teleconverters are an excellent choice. When you use a teleconverter to enlarge an image, the aperture decreases. You could theoretically.
Teleconverters are best suited for lenses with a wide maximum aperture. Manual focus may be necessary in this case. Just make sure your lens aperture and image stabilization are working the same. You want the same shooting information sent to the camera.
Your teleconverter should always fit the camera body and your lenses. Lens compatibility is the most crucial aspect. So, if you have a Pentax, go with a Pentax teleconverter. If you have a Sigma lens, you should use a Sigma teleconverter. A significant disadvantage of teleconverters is image quality loss.
When you use higher magnification, you are only magnifying the central part of the image in the lens. You also capture any defects and aberrations. Matched teleconverters do a great job of being designed to be optically compatible with the lens.
A matched aka dedicated teleconverter is explicitly designed for one lens. Most camera manufacturers offer a selection of teleconverters for telephoto or super-telephoto lenses of their own. And usually, the optical layout is made specifically for their lenses. Lens manufacturers like Sigma have teleconverters available for Sigma lenses specifically, but they work on different camera body mounts.
There are specific generic or third party converters like the ones made by Kenko. Always check the compatibility between the two before purchasing, though. You can check some out on Amazon. They are a much cheaper option than what it would cost to buy a separate long lens.
It can also be used on multiple lenses, allowing you to change the focal length of many different lenses. It is a great device to extend the sufficient focal length, no matter which lens you use.
The magnification varies, but we notice the most common one to be 1. Longer lenses can sometimes be pretty huge to carry around. A 2X or a smaller device can save your back from some of the strain and damage that a larger lens could bring with it. You can carry fewer lenses if you have a teleconverter in your bag. This device allows you to keep a minimum focal length of the lens you are using.
The most important thing is that using a teleconverter will mean less light. Less light would also mean a decrease in the widest aperture. The distinction of II in the name of Nikon teleconverters means that the newer versions use lighter metals in their construction. There is no difference betwen the the original versions and the newer ones in terms of functionality or optical performance. By clicking Sign Up, you are opting to receive educational and promotional emails from Nikon Inc.
You can update your preferences or unsubscribe any time. Search Articles. Glossary Off On. What exactly are teleconverters and can I use one with my camera and lens es? Should I use a teleconverter? Amount of light lost when using teleconverters When using a 1.
Lens manufacuturers, notably Sigma, make teleconverters to work with Sigma lenses on a number of different camera body mounts. Third party teleconverters, such as those made by Kenko, are designed to offer a low-cost option. These are available in a number of different mounts - the mount for the lens it is used with is almost always the same as the camera mount the pair are being fitted onto.
You need to check compatibility with your camera and lens carefully before buying. Rod is the Group Reviews editor for Digital Camera World and across Future's entire photography portfolio, with decades of experience with cameras of all kinds. He has been writing about photography technique, photo editing and digital cameras since they first appeared, and before that began his career writing about film photography. He has used and reviewed practically every interchangeable lens camera launched in the past 20 years, from entry-level DSLRs to medium format cameras, together with lenses, tripods, gimbals, light meters, camera bags and more.
Rod Lawton. See how it all works here. They are often called extenders or multipliers. A teleconverter is a lens extension It sits sandwiched between your camera and the lens. You attach the teleconverter directly to the camera body. And then, you connect your lens to the teleconverter. This increases the focal length, giving your lens a longer reach. Teleconverters also narrow the field of view, giving you a tightly cropped image. Canon and Nikon both have teleconverters with 1.
Nikon has a third model in the middle, with 1. They extend the focal length of the lens by the level of magnification. If you use a 1. And a mm zoom lens becomes a mm. As mentioned, distance can be a problem in photography.
The teleconverter serves to solve this problem. By extending the focal length of a lens, it gives you a longer range. It gives you that extra bit of length so you can get the shot you want.
Teleconverters are a popular piece of equipment with wildlife photographers. They allow them to capture intimate animal photos without treading on their toes. Astrophotography is another area in which teleconverters are popular. Their subjects are millions of lightyears away, so they need all the help they can get. Also, the crop factor of a teleconverter can also help frame your subject.
Using a teleconverter is simple.
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