What Does Af S On Camera Lens ?
AF-S is one of the most important features found on modern camera lenses. It stands for 'autofocus with silent wave motor', and it is used to provide a smooth and quiet autofocusing experience. For photographers, AF-S is an essential feature that can make or break a lens. In this article, we'll explain what AF-S is, why it's important, and how to use it to get the best results from your lens.
1. What is AF-S?
AF-S is an autofocus technology that uses a 'silent wave motor' (SWM) to provide fast and quiet autofocus performance. It works by using a high-frequency waveform to move the lens elements in and out of focus. This makes it much quieter than traditional autofocus systems, which rely on motors to move the elements.
2. What advantages does AF-S have over traditional autofocus?
The main advantage of AF-S is that it is much quieter and smoother than traditional autofocus systems. This makes it ideal for shooting in quiet environments, such as weddings or concerts, where you don't want to disrupt the atmosphere with loud autofocusing noises. Additionally, AF-S lenses are often faster than traditional autofocus lenses, allowing you to capture the perfect moment faster.
3. What types of lenses have AF-S?
Most modern lenses, including those from Nikon and Canon, have AF-S technology built in. Additionally, third-party lenses, such as those from Sigma and Tamron, may also feature AF-S. When buying a new lens, be sure to check if it has AF-S before making your purchase.
4. How do I know if my lens has AF-S?
If your lens has AF-S, it will usually be listed in the specifications or features of the lens. Additionally, lenses with AF-S will usually have a small 'AF-S' logo on the lens barrel.
5. What is the difference between AF-S and AF-C?
AF-S is designed for still photography, while AF-C is designed for shooting video. AF-S lenses will focus on a single target, while AF-C lenses will continuously adjust focus as the subject moves.
6. How do I use AF-S?
Using AF-S is simple. Just turn your lens to autofocus mode, point it at the subject, and press the shutter release button. The lens will then automatically adjust its focus until it locks onto the subject.
7. Can I manually focus while using AF-S?
Yes, you can manually adjust the focus while using AF-S. Simply turn the focus ring on the lens until the subject is in focus, and then press the shutter release button.
8. What are the disadvantages of AF-S?
The main disadvantage of AF-S is that it can be slower than traditional autofocus systems, particularly in low-light conditions. Additionally, AF-S lenses tend to be more expensive than traditional autofocus lenses.
9. Is AF-S worth it?
For most photographers, AF-S is a great way to get fast, quiet, and reliable autofocus performance. If you're shooting in quiet environments, or if you need fast autofocus performance, AF-S is definitely worth the extra cost.
In conclusion, AF-S is an important feature found on modern camera lenses. It provides fast and quiet autofocus performance, making it ideal for shooting in quiet environments. Additionally, AF-S lenses tend to be faster and more accurate than traditional autofocus lenses. While they are more expensive than traditional autofocus lenses, they are often worth the extra cost for photographers who need fast autofocus performance. With this article, we hope to have provided you with a better understanding of what AF-S is and how it can benefit your photography.