A telephoto lens has a long reach—traditionally this means a focal length of 60mm or more—but it does not necessarily need to slide through a range of focal lengths.
It's not zoomed in or out. 50mm prime lenses also have a much wider aperture than zoom lenses — with some 50mm lenses going all the way up to f/1.4. The extremely wide aperture lets in about three to four times as much light as your regular kit lens, helping you shoot clear pictures in even the lowest light conditions.
50mm lenses are fast lenses with a fast maximum aperture. The most basic 50mm lenses are typically F1. 8 - a very wide aperture. This means they are great for low-light photography (e.g. low-light portraiture or indoor shooting) as they allow more light into the camera's sensor.
What they are: Telephoto lenses are those with a focal length in excess of 70 mm, though many people would argue that "true" telephoto lenses are ones which exceed 135 mm. They focus on a much narrower field of view than other lenses, which means they are good for focusing in on specific details or distant subjects.
The main difference between the two is the focal lengths that they have. Wide angle lenses have short focal lengths (i.e. 18mm) while telephoto lenses have longer focal lengths (i.e. 200mm). Focal length is an important aspect of optics that dictates how much of a view the camera sensor actually gets.
A 50mm lens is perfect for street photography. Its focal length allows you to get close to your subjects and fill the frame for more intimate images. But it also gives you the flexibility to step back from a scene and capture a wider environmental context, which is often essential to street photography.
A 50mm lens means the lens to image distance is 50mm (about 2 inches) when the camera is imaging a distant subject. Short focal length lenses project tiny images and deliver a wide-angle view. Long focal length lenses project enlarged images; they are said to be telephoto.
50mm landscape photography: final words
But the 50mm prime lens is a great option for landscape photography, especially if you're a beginner; it will make you think differently about your photos, it will free you from the constraints of a heavy setup, and it will easily provide you with clear, sharp images.
Is 35mm or 50mm better for portraits? Both are great portrait lenses, however, a 50mm will generally give you more depth of field (thus offering better subject separation), show less distortion, and still have a wide enough field of view to capture enough of the surrounding context.
The Nikon AF Zoom-NIKKOR 70-300mm f/4-5.6G is a lightweight and a compact lens that is compatible in both DX and FX format. This Nikon Telephoto lens sets aperture from the command dial on the camera body. The basic features of this Nikon camera lens are the 4.3x telephoto zoom feature.
Lenses above 300mm are typically also referred to as a super-telephoto lens. These lenses offer the most reach. If you use a telephoto lens on a crop sensor, it can reach a focal length as long as 1000mm. This also means that they have a narrow field of view, from 8° to 1°.
300 – 600mm super telephoto zoom lenses have the most dramatic telephoto effect which creates a shallow depth of field. Wildlife and sports photographers favor these lenses because the longer focal length makes small or more distant subjects appear larger and fill the frame.
For portrait photography, 50mm lenses are great for full-length and waist-level portraits, both on location and in the studio. This is thanks to the wide field of view compared to an 85mm or 135mm lens, and you don't need to be too far away from the model to achieve these crops.
A 50mm prime should be wide enough to shoot group portraits outside, but if you're shooting inside, then you have to consider whether you have enough space to back up and get everyone in the frame. Unfortunately, sometimes you won't know that until you get there and put everyone together.
The Reciprocal Rule of Shutter Speeds and Portraiture
With a 50mm lens, you'll need to shoot at 1/50th. You're also bound to be shooting at a wider aperture with a lens like this, so you don't need to make your ISO output go into a higher range.
To photograph a large group, I'd recommend playing it safe and using a 50mm lens. Depending on the depth of your group arrangement, stick with an aperture of f/9 or higher to ensure that everyone is sharp, and always do a test shot first.
50mm lenses work best in capturing typical macro shots. However, these types of macro lenses have their drawbacks. 50mm lenses make subjects appear half “life-size” since they usually feature a 1:2 ratio, and require shooting at a much closer distance. But a 50mm lens is a must if you want a general walk-around lens.
Zoom lens is the general term used for any lens that varies its focal length. Telephoto lenses are lenses that usually have a very high focal length to capture far away objects. A lens can either be zoom or telephoto, both, or neither.
While technically not a wide-angle lens, 18-55mm lenses allow you to shoot wide-angle by using the shortest focal length (18mm) and playing around with shooting angles and composition techniques.
A convex lens makes objects look larger and farther away. Convex lenses correct farsightedness. A concave lens makes objects look smaller and closer.
You can use the Sony 16-50mm f/3.5-5.6 on Sony's APS-C mirrorless cameras. That includes models such as the Sony a5000, the Sony a6000, the Sony a6400, the Sony a6100, and the Sony a6600. Technically, you can mount the 16-50mm lens on a full-frame Sony mirrorless camera, such as the a7 III.