Although a wide aperture is not yet a guarantee of camera quality, a smaller aperture value provides more light for the sensor, which reduces the shutter response time to reduce blurring and reduces noise.This value should always be considered in conjunction with the size in pixels, since larger pixels do not necessarily require a wider aperture to capture enough light. However, small pixels and a small aperture are a sure sign that you will have problems in low light conditions.Lens Quality: where do the distortions come fromAn equally important but often overlooked component of a smartphone camera is the lens, and like everything else, it can vary in quality. After all, you've probably noticed that a dirty lens takes bad pictures. It follows that a lens glass with poor clarity or transparency reduces the amount of light that hits the sensor, and therefore degrades the image quality.Smartphones that use a very wide aperture require special attention to the design of the lens to avoid distortion, aberration and glare, which are not so rare. Agree, it is much more difficult to accurately focus the light when it passes through a wider hole, so when making lenses, you need to be as careful as possible.
< /p>Aberration distortion leads to a number of problems that occur when the lens cannot accurately focus light. Phones with a wide aperture are by definition less focused on a particular part of the scene than phones with a narrow aperture, and are therefore more prone to problems.Aberration distortion can be different: spherical aberration (reduced sharpness and sharpness), coma (blurring or distortion), field curvature (loss of focus at the edges), distortion (convexity or concavity of the image), and chromatic aberration (unfocused colors and divided white light).Camera lenses, including those in smartphones, consist of several " correction groups», designed to focus light correctly and reduce aberration. Cheaper lenses tend to have fewer groups and are therefore more problematic. Lens materials also play an important role: higher quality glass and multiple coatings provide better correction and less distortion. Photographers sometimes call them "fast" lenses.The quality of the lens is difficult to judge by the numbers or specifications, plus, many phone manufacturers do not even mention it. Unfortunately, the poor quality of the lenses makes reasoning about the aperture and pixel size useless, as it affects everything. But in the smartphone market, now there are well-known companies-manufacturers of optics, including Zeiss, Leica and others - and this is a huge plus.In conclusion, it is worth saying that the quality of the lenses is no less important than other factors, but it is difficult to assess it without testing the camera.Bottom line, as you probably already realized, the diaphragm is not everything. As in most areas of photography, when making a decision about buying a smartphone, it will not be the determining parameter, since in itself it is not an indicator of quality. However, it offers a number of advantages, including the ability to capture frames better in low light and a higher shutter speed.For creative photography fans, a wider aperture will not give anything special in terms of interesting features, in addition to the chances of better images. As you understand, the lenses are fixed in the smartphone, and the small size of the sensors means that you will never see as much detail and get the kind of blur that you need for a perfect portrait. Currently, most smartphone cameras that offer bokeh effects do so using software and / or a second camera. Wide-angle and zoom cameras are more interesting options for such shots.At the same time, small smartphone sensors are still sensitive to low light, and a wider aperture, combined with an excellent lens and sensor, helps to reduce noise and improve image quality.