Camera lenses are an essential part of your photography kit. They are more important than the camera body itself because they determine the aperture range, depth of field, and focusing distance. Lenses fall into two main categories: zoom and prime. Zoom lenses offer a variable focal length, while prime lenses have a fixed focal length. Within these categories, there are various types of lenses, including standard, wide-angle, and telephoto. When choosing a lens, factors such as maximum aperture, focal length, and image stabilisation should be considered. Additionally, lens accessories, camera compatibility, and the intended purpose of the lens, such as for landscape or portrait photography, are important aspects to keep in mind.
Characteristics | Values |
---|---|
Lens type | Zoom or prime |
Focal length | Wide-angle, standard, or telephoto |
Aperture | Variable or non-variable |
Aperture size | Small or large |
F-stop | f/2, f/4, f/5.6, f/8, f/11, etc. |
Focal point | Variable or fixed |
Image stabilisation | Yes or no |
Filter size | Ø=68mm, etc. |
Focusing range | Infinity to 0.5m, etc. |
Lens coating | Aspherical or spherical |
Image stabilisation | Yes or no |
Lens mount | Screw mount, lock ring, bayonet fitting, etc. |
What You'll Learn
Zoom lenses vs. prime lenses
Zoom lenses and prime lenses are the two main types of camera lenses. Each has its own advantages and disadvantages, and the right choice depends on your needs and preferences. Here is a detailed comparison between the two:
Zoom Lenses
Zoom lenses offer a variable focal length, allowing photographers to zoom in or out by turning the zoom ring. They are incredibly versatile and can be used for a wide range of photography, from street and wildlife to wedding photography. Zoom lenses are usually heavier and more expensive than prime lenses. They often have smaller maximum apertures, which can be a disadvantage in low-light conditions. However, they provide compositional flexibility, especially in constrained spaces where moving around is not an option. Zoom lenses are also convenient when you need to adapt quickly to moving subjects or when you are unsure of the shooting conditions.
Prime Lenses
Prime lenses, on the other hand, have a fixed focal length, meaning you cannot zoom in or out. They are more specialised and deliver higher-quality images for specific types of photography. Prime lenses are generally sharper, smaller, lighter, and more affordable than zoom lenses. They often have wider maximum apertures, making them ideal for low-light photography and creating shallow depth of field or "bokeh" effects. Prime lenses can also train you to be more creative with your shots and improve your composition skills as you have to physically move to change the framing. However, they might not be as convenient as zoom lenses, especially when you need to adapt to different shooting situations.
Both zoom and prime lenses have their strengths and weaknesses. Zoom lenses offer versatility and convenience, while prime lenses provide superior image quality, low-light performance, and creative control. The choice between the two depends on your specific needs and style of shooting. Many photographers end up having both types of lenses in their kit to cater to different scenarios and requirements.
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Wide-angle lenses
A wide-angle lens is defined as any lens with a focal length shorter than the length of the sensor or film. For full-frame sensors, this means a focal length of 35mm or less. Lenses between 35mm and 24mm are considered standard wide-angle lenses, while those between 24mm and 18mm are considered ultra-wide. Anything below 18mm is a fisheye lens, which is characterised by its distinctive distortion.
When choosing a wide-angle lens, it's important to consider the type of camera you have, as the camera's sensor will impact the effective field of view of the lens. Smaller sensors will crop out the centre portion of the image, resulting in a tighter field of view.
- Canon RF 24mm F/1.8 Macro IS STM
- Nikon NIKKOR Z 20mm F/1.8 S
- Sony E 20mm F/2.8 SEL20F28
- Canon EF 28mm f/1.8 USM
- Canon 24mm f/1.4L II lens
- Rokinon 10mm f/2.8 ED
- Samyang XP 10mm f/3.5
- Voigtlander 10mm f/5.6
- Canon TS-E 24mm f/4L UD
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Telephoto lenses
A telephoto lens is not always a zoom lens, but it can be. A zoom lens has an adjustable focal length, whereas a fixed focal length lens is called a prime lens. Telephoto lenses come in a variety of focal lengths, from medium telephoto (70-200mm) to super telephoto (over 300mm).
The telephoto lens is ideal for bringing the background closer to the foreground. This is extremely valuable when trying to capture faraway action or things you may not want to get close to. They are bulky and may require a tripod to support them.
The telephoto lens is perfect for wildlife photography, as it allows photographers to get close-ups of animals from a distance. It is also useful for landscape photography, as the compression effect blends buildings with the surrounding mountains, creating beautiful images.
The telephoto lens is also great for portrait photography. The longer focal length shrinks the subject in the foreground while keeping the background in view, emphasising the background and highlighting the subject. The telephoto lens also makes facial features appear more proportional.
When choosing a telephoto lens, you need to consider whether you want a zoom or prime lens, the focal length, image stabilisation, and whether you need a full-frame or APS-C lens.
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Macro lenses
A macro lens is a type of camera lens that allows you to focus extremely close to a subject, capturing intricate details that are invisible to the naked eye. They are designed with a very short minimum focus distance, enabling photographers to reproduce objects at, or slightly smaller than, life-size.
The defining feature of a macro lens is its ability to focus at very close range, rather than its focal length. Macro lenses can have a variety of focal lengths, ranging from wide-angle to telephoto. When choosing a macro lens, it's important to consider the focal length, as it will determine your field of view, working distance, and background blur capabilities.
For example, a macro lens with a shorter focal length will typically be smaller, lighter, and more affordable. It can achieve the same level of magnification as a longer focal length macro lens, but with a shorter working distance, requiring you to get closer to your subject. On the other hand, a longer focal length macro lens provides a greater working distance, which can be advantageous when photographing small animals or insects, as it allows you to maintain a comfortable distance without disturbing your subject.
Additionally, longer focal length macro lenses often produce a more pronounced background blur, which can effectively isolate your subject. However, they tend to be bulkier and more expensive.
Some common uses for macro lenses include photographing insects, flowers, jewellery (especially engagement and wedding rings), coins, and everyday small objects. Macro lenses can also be used for portraits, creating a beautiful bokeh effect.
When purchasing a macro lens, it's important to pay attention to the magnification ratio. A 1:1 macro lens can reproduce objects at life-size, while a 1:2 macro lens reproduces objects at half their actual size.
Some popular macro lens options include the Canon EF 100mm f/2.8L Macro IS USM, Nikon AF-S VR Micro-Nikkor 105mm f/2.8G IF-ED, and the Fujifilm XF 80mm f/2.8 R LM OIS WR Macro Lens.
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Standard or normal lenses
Cinematographers often use normal lenses for more naturalistic cinematography. Standard lenses are common among street photographers, travel photographers, photojournalists, and portrait photographers. The natural field of vision makes the standard lens a popular choice for many photographers.
The 50mm prime lens, also known as the Nifty Fifty, is a popular standard lens. This nickname derives from the lens’s versatility and reliability. Nifty fifties are popular in many areas of photography and are among the most common lenses.
Standard lenses are also "fast" lenses, meaning they have a wide aperture, making them great for indoor and low-light photography. They are also inexpensive and of high quality.
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Frequently asked questions
Camera lenses can be divided into two main types: zoom lenses and prime lenses. Zoom lenses offer a variable focal length, allowing you to zoom in or out, while prime lenses have a fixed focal length.
Zoom lenses are more versatile and allow you to capture a wide range of subjects, from street photography to wildlife. Prime lenses, on the other hand, have a fixed focal length and are specialised for specific types of photography, such as portraits or landscapes. Prime lenses generally produce higher-quality images but are less versatile.
When choosing a camera lens, consider the type of photography you want to do. Different lenses are suited for various purposes, such as landscape, architecture, sports, wildlife, or portrait photography. Also, consider the camera body you have and ensure the lens is compatible. Additionally, factors like focal length, aperture, image stabilisation, and lens markings are important to consider when selecting a camera lens.
Popular camera lens brands include Canon, Nikon, Sony, Sigma, Tamron, and Fujifilm. When choosing a brand, consider your budget, the quality you're looking for, and the specific features that cater to your photography needs.