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A fluorophore is a molecule or a portion of a molecule that has the ability to emit light upon excitation by an external energy source, such as ultraviolet or ...

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The Canon EF 70-200mm f/2.8L IS III USM is a versatile telephoto zoom lens with a constant f/2.8 maximum aperture. It has optical image stabilization, and high-resolution, high-contrast images throughout its zoom range. It offers manual focusing and AF and a minimum focusing distance of 3.9 ft (1.2m).

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Like all zoom lenses, a telephoto zoom lens provides flexibility, versatility, and lots of creative freedom. It helps you out in situations in which otherwise would be impossible to take a photo (e.g., photographing wildlife from a safe distance) and offers a fast setup for multiple situations. If you choose a focal length range in the super telephoto area, you will be able to try macro photography, astrophotography, photographing architectural details, or capturing amazing sports shots.

The lens features up to 5.5 stops of image stabilization, a fast autofocus system, a 2.72ft (0.83m) minimum focusing distance, and a 0.33x maximum macro magnification. The construction is dust-, freeze-, and weather-resistant.

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The most common focal length ranges for telephoto zoom lenses are in the medium telephoto area (e.g., 70-200mm, 75-300mm). You can also find focal lengths in the super telephoto area (e.g., 200-500mm,  200-600mm).

A lens with a focal length of 60mm or longer is considered a telephoto zoom lens. If it provides a single focal length, it is a prime lens. But if it provides a range of focal lengths, all longer than 60mm, it is a telephoto zoom lens.

The lens features a constant large aperture throughout the entire zoom range. It also has a fast, silent, and smooth autofocus system, and a minimum focusing distance of 2.3 ft (0.7m). It’s also dust and weather-resistant.

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The lens features optical image stabilization, phase detection AF, and contrast AF. It also has a push/pull zoom mechanism, a 9-blade rounded diaphragm for attractive blur, and a dust- and splash-proof structure. It’s compatible with full-frame mirrorless cameras.

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The FE 200-600mm f/5.6-6.3 G is an ultra-telephoto zoom lens perfect for wildlife and sports photography. It provides optical image stabilization, high resolution, and AF performance throughout the zoom range. It boasts an optical design for reducing distortions and aberrations, a natural-looking bokeh effect, and Nano AR Coating for reducing flare and ghosting.

The lens creates a beautiful bokeh effect and has a short minimum focus distance (1.32 ft at 70 mm and 2.69 ft at 200 mm), which makes it perfect for close-up photography.

The Sigma 100-400mm F5-6.3 DG OS HSM is an ultra-telephoto zoom lens with compact packaging and high image quality performance. It’s designed to reduce chromatic aberrations, flare, and ghosting and produce flawless, sharp images.

Macro photography comes with no sweat with this lens, offering photographers a pleasingbokeh effect in the background while your minuscule subject takes the majority of theframe. It’s important to note that its minimum focus distance is 7.8 inches and on widemode, the lens has a reproduction ratio of 0.35x – so anyone who sees your photos gets tofeel like they’re right there with your little subject.

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FX and DX-format Nikon Z mirrorless camera owners will love this super-telephoto zoom lens for their wildlife, sports, and action photographs. It features vibration reduction, smooth and silent autofocus, and image stabilization. Plus, it has an optical design for reducing axial chromatic aberration, flare, and glare, and an innovative design enhancement to eliminate lens creep.

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Having more than one focal length allows you to capture details of your subject without physically getting closer or changing the lens. It’s a big advantage when you photograph easily startled subjects (e.g., wildlife), take snapshots during events, or can’t afford to buy or carry more than one lens.

If you’re looking for an affordable zoom lens for Sony E Mount or Nikon Z Mount cameras, the 70-300mm F4.5-6.3 may be your lens. It’s portable, versatile, and easy to use. The lens features a high-performance autofocus system for action shots, in-camera lens corrections, large maximum apertures, up-close shooting performance, and moisture-resistant construction.

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A compact and lightweight VR lens, the NIKKOR Z 28-400mm f/4-8 has an outstandingfocal length that can cater to every photographer in any niche. The lens has a zoom of up to14.2x, making sure that no matter how you are from your subject, you’ll always be able tocapture it in stunning clarity. Therefore, this lens could be great for sports photographerseither in courtside or even way up in the bleachers!

The lens is user-friendly and helps you focus fast and precisely. Due to the dust- and moisture-resistant design and fluorine front-element coating to repel water, oil, and other contaminants, the lens will have a long and productive life.

A new generation of superzoom telephoto lenses has arisen that can take in scenic vistas, zoom in on distant subjects, and focus up close for near-macro shots. Will a telephoto zoom lens be your next lens?

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Due to its performance in image stabilization (up to 6 stops of shake correction), you can use the lens without a tripod for street and event photography.

The fluorine coating of the lens prevents dust, oil, and water residues and prolongs its life. And Canon’s signature Air Sphere Coating (ASC) suppresses reflections and combats aberrations. The EF 70-200mm f/2.8L IS III USM performs in any light conditions and environment.

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A telephoto zoom lens is also a good idea when the subject is far away from the camera and you can’t get closer to it (e.g., photographing a street festival or parade). A focal length range in the medium telephoto areas will allow you to go from a relatively wide angle to a narrow and precise one. This type of lens provides a beautiful bokeh effect, which is perfect for making your subject stand out (e.g., portraits).

Use a telephoto zoom lens to make your subject look closer to the camera than it actually is and to capture details. Wildlife and sports photography are good examples of using this type of lens.

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With a smooth zoom and macro capabilities, the Fujifilm XF 70-300mm f/4-5.6 R is ready for any challenge. The 35mm-equivalent focal length range of 107-457mm is versatile and allows you to try any type of photography.

This lesson will explain the different types of lenses that are commonly used as well as help with some of the technical aspects of lens selection.

Nikon also thought of macro style close focusing and enabled the lens to focus at 2.46ft (0.75m) at 100mm and 3.22ft (0.98m) at 400mm.

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The Canon RF 100-400mm f/5.6-8 IS USM enters the super telephoto area and provides an ultra-versatile focal length range. The lens features in-body image stabilization, a special optical design for correcting chromatic aberration throughout the entire zoom range, a fast, silent, and smooth autofocus system, and a control ring for fast setups. The minimum focus distance is 2.89 ft (0.88m) at 200mm.

The Sony FE 70-200mm f/2.8 GM OSS II G is a zoom lens in the medium telephoto area that provides a full experience. It features a fast f/2.8 aperture for impeccable image quality in low light conditions, high resolution throughout the entire zoom range, optical design for minimizing chromatic and distance-related aberrations, Nano AR Coating II for no reflections, and a fast and precise autofocus system.

Unfortunately, it doesn’t have optical image stabilization. But it’s small and light enough to be easy to handle and take sharp photos even without a tripod.

With focal lengths in the medium telephoto area, the RF 70-200mm f/2.8 L IS USM is a good choice for portraiture, wedding, wildlife, sports, and fashion photography. It’s lightweight and portable and features optical image stabilization with up to 5 stops of shake correction for safe use without a tripod.

However, a telephoto zoom lens has a few drawbacks too. Compared to shorter lenses, they’re heavy, bulky, and hard to manage. It’s also prone to camera shake blur, and you will often want to use a tripod or use a high shutter speed to counteract this. And if you only use one focal length, a prime lens will provide a better image quality.