Which lens is best for focusing in nikon?

Which lens is best for focusing in nikon? - 1

All of them.

The Nikon AF-S lenses.

In what way? All lenses can focus. If there was one lens that did everything well for a good price, we wouldn't need such a wide range of lenses.

Generally, the more light there's in the scene, the less noise and blur there will be in the image.

If you need more of the scene to be in focus, you need a wide depth of field, which means you need a small absolute aperture, more often found on wide-angle lenses. To have a sharp subject with a blurry background, you need a shallow depth of field, from a large aperture, typically from a telephoto lens. Depth of field is also dependent on the focus distance, widening at infinity and narrowing closer to the lens.

The higher-tier lenses usually have:
- internal focusing, which means there are no exterior moving parts aside from the control ring,
- focus scales, which let you see from the outside what distance the lens is focused. This is very helpful for focusing at infinity (i.e. Anything far away), or pre-focusing on a target area where you know your subject will pass through,
- consistent aperture throughout the zoom range,
- more consistent angle of view throughout the focus range (lower-tier lenses may slightly zoom while focusing),
- wider maximum aperture,
- more pleasant 'bokeh' on unfocused parts of the image.

The entry-level Nikon models do not have focusing motors, and must rely on motors built into the lenses (AF-S, AF-I). The mid-range models (currently D7200 and better) have focus motors, and often acquire focus faster.

All lenses can focus. There would be no point in having a lens if it couldn't focus. Are you asking about autofocus? If so, then you need to tell us which camera you have if you want a proper answer.

Your question is lacking in detail, so much it took me reading all the other answers to try and get a feel as to how to help you. My only thought is that you want to know which is the easiest lens to focus under "most" lighting conditions and the answer to that is a fast lens. A lens with the largest aperture you can afford. So any lens that is f/2. Or larger like, f/1.8, or f/1.4, or f/1.2. This usually means that you use say a 50mm lens with a super large (or light absorbing f/stop). So take a look at the lens that probably came with your camera! It no doubt is a 18-55mm "f/4" lens. That means the light gathering power is a minimum of 4 f/stops SLOWER than the f/1.8 lens. Or to put it another way, the f/1.8 lens gathers light 8 times faster than the 18-55mmlens.

Hope this helps you.

Do you mean - which Nikon lens is sharpest?

ALL!