Following the unveiling of its Nokia 9 Pureview, Nokia has raised a lot of controversy because it has used five lenses on the back side with the same precision and the same aperture as 1, which may surprise the average user. However, Photography will not fool them with the trick that companies have relied on for a period of time, other factors other than the accuracy of the lens plays an important role in improving the quality of the image and output as required.
The basics are a must
When companies like Apple and Samsung thought to raise the quality of images on their smartphones, I decided to use two lenses on the back rather than one, and in some cases three, to take advantage of the processing power provided by the smart devices to integrate the images taken by those lenses and output one image Details required. Looking at the technical details of the lenses, Samsung has used the Galaxy S10, to name a few, a 12-megapixel telephoto lens to shoot distant scenes, and the exact same but wide-angle lens (Wide -angle), and finally a third lens at 16 megapixels at a wider angle (2).
Sample shots from the @nokia 9 PureView (these were shot in RAW and edited in Lightroom on the phone by professional photographers). |
This can give you an idea of the factors to consider when choosing the right lens. Here, talk about the lenses of both smart phones and cameras. The principle is one with different possibilities, each lens has aperture and a focal length of two different focal lengths .
Other factors should be observed, such as the existence of an image stabilizer inside the lens. Most cameras provide this by default. However, to ensure a high picture quality, some companies also provide an image stabilizer inside the lens, thus ensuring the user has access to images, , Concussion-free. In addition, zoom is another factor. Some lenses have a fixed focal distance, while some lenses provide more than a focal distance, so the scene can zoom in and out before it is captured as desired.
With concentration
The aperture is defined as "Aperture" and is symbolized in all lens types and cameras as "f", which is of the shape (f / 2.4). The most important thing is the amount of light entering the sensor. The smaller the number, the greater the amount of light, which means the ability to capture clear images in low light conditions. The main objective of the lens is to pass as much light as possible to capture the details of the scene. The difference in picture quality between two smart phones, for example, is explained by the fact that there is a lens with the exact same accuracy. The size of the aperture plays a key role in this.
The aperture is also responsible for the clarity of the objects within the image frame, or the so-called Depth of field, which is responsible for the blurry effect in the images.
The focal length (4) represents the distance of the center lens inside the lens from the sensor responsible for capturing the light to convert it into a digital image. The measurement unit of this dimension is palpable, and this explains the names of lenses that are, to name but a few, "Canon 18-55mm" (Canon 18-55 mm) or "Canon 18-135 mm". The default dimension is approximately 50 mm, and any lens smaller than this figure is called a wide angle and is used for landscape photography. At a time when Telephoto is called lenses that carry a dimension greater than 50 mm, which are used to shoot distant objects or to photograph people.
The importance of focal length does not stop at this point, it also interferes with the possibility of enlarging images. Some lenses come with a fixed focal dimension, a type known as Prime, which is characterized by its small size and low price, in addition to its high strength because it does not contain moving parts. There is another type of moving dimension known as zoom, which can be separated immediately when looking at the name of the lens, "Canon 300-55 mm" (5).
For now, with visual references such as YouTube videos, the user can take a look at any lens before buying it. The experience in these matters is good proof, seeing the tests on the ground the best way, and perhaps channels such as Fstoppers, , Thomas Heaton, with B & H Photo Video and PHLEARN, is one of the best references on YouTube that can be followed up to get the latest information about photography and its equipment.