Just like everything else, these vary considerably in quality. After all, a dirty lens takes poor pictures, and lens glass with poor clarity or transparency will do the same. This will reduce the amount of light reaching the sensor and therefore reduce image quality. More: These are the best smartphone camera lens add-ons you can buy. Smartphones using very wide apertures require extra special attention to lens design.
A bad design could worsen aberration distortion and lens-flare effects that have haunted some devices. Aberration distortion covers a range of issues that appear when a lens cannot perfectly focus a point of light. Phones with a wide aperture are less focused on a specific part of the scene than one with a more closed-in aperture, and therefore more prone to problems. Aberration distortion comes in a variety of effects. These include spherical aberration reduced clarity and sharpness , coma blurring or tailing , field curvature loss of focus at edges , distortion image convexing or concaving , and chromatic aberration unfocused colors and split white light , among others.
See some examples below source. Cheaper lenses tend to feature fewer groups and are therefore more prone to issues. Lens materials also play an important part here, with higher quality glass and multiple coatings offering better correction and less distortion. Lens quality is harder to judge from numbers or a spec sheet. Unfortunately, this matter complicates talk about aperture and pixel sizes, as cheapening out on the lenses could render these developments useless.
A poor lens can undo good engineering done elsewhere. Next: What is aperture priority, and when should you use it? However, it offers several advantages, including the possibility of better low light capture and faster shutter speeds. If you ask us, we think there are other specs and features that could help more. That being said, small smartphone sensors are susceptible to low light, and a wider aperture, combined with an excellent lens and sensor, should theoretically help to reduce noise and produce better-looking pictures.
Photography is a complex art, so we have put together a series of tutorials and in-depth material for you to learn more! Understanding aperture: What is it and how does it affect image quality? Still learning your photography terms? We use focus and depth of field to direct attention to what is important in the photograph, and we use lack of focus to minimize distractions that cannot be eliminated from the composition.
While there are no rules, there are some guidelines for selecting Aperture priority. For classic portraiture we separate our subject from the surroundings by using "selective focus.
This helps direct the viewer's attention to the subject. While we can get the maximum or minimum depth of field by working at each end of the aperture range, sometimes we want a more intermediate level of depth of field, limiting focus to a specific range of distances within the overall photograph. In image playback, use the magnifying function of the LCD to zoom in and check the depth of field; make adjustments if necessary and reshoot.
By clicking Sign Up, you are opting to receive educational and promotional emails from Nikon Inc. You can update your preferences or unsubscribe any time. Search Articles. Understanding Maximum Aperture. Glossary Off On. What is aperture in photography? I have observed that the wider the aperture, the more expensive the lenses are.
However, I would like to know whether it really makes a difference in your photos or not? Professionals tend to want to use lenses with larger apertures so they can either limit depth of field or work in marginal lighting. Because these lenses are marketed towards professionals they usually have a higher build quality, and so are heavier and more expensive. Also pros tend to want constant apertures in zoom lenses, which makes the zooms require more glass and more complicated lens groupings -- both of which increase the cost along with the whole pro-build thing.
That said, there are plenty of medium and large format lenses that have a maximum apertures of no more than 5. We aren't talking about that level of photography, but modern first party and major third party lenses should be of acceptable quality for most purposes.
At a personal level, one of my favorite lenses is an old Nikkon 50mm f1. That lens doesn't really look all that great in lab tests at dpreview. I've also taken some good pictures with a Canon kit lens variable aperture zoom.
A bigger aperture does not, by itself, create better photos. But, it offers more flexibility, which gives you the option of taking photos you couldn't otherwise, and for a given situation, that may indeed be better. The two things that a wider aperture enables are 1 more light gathering and 2 smaller depth of field.
All of this is covered in detail at What is aperture, and how does it affect my photographs? A wider aperture lets you use either or both of a shorter shutter speed better freezing motion or a lower ISO generally less noise from amplification. If the light is low enough, the wider maximum aperture may allow you to get those other values to ranges which just wouldn't be acceptable at higher apertures — too much noise or motion blur. With everything else the same, a wider aperture gives an image where things further from the distance you're focused at are blurrier.
This can be useful in composition, for making your subject stand out from the surroundings — or even blurring the background so details aren't distracting. See What exactly determines depth of field? It is often the case that lenses are sharpest and overall at their technically-best when stopped down a few stops from their widest aperture.
See How do you find out the "sweet spot" of a lens? But this is just a generalization and isn't true in all cases. But then again, according to build quality and all , almost all lenses have a sweet spot.
For instance for a lens with fast aperture , say 1. It will have to be tested out with each lens. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
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