Nikon AF-S vs AF-D lenses?
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Ok, I gotta ask… What lenses are better overall? I know AF-D lenses are cheaper, but I hear AF-S image quality is superb. What about performance/speed (I know this varies by aperture, but in comparison to each other)? Auto focus?
If I invest a little more money for the AF-S lens, will I love it or regret it?
sorry, Canon fans, this is a Nikon question so please don't go on and on trolling about how Nikon is inferior to Canon. (besides I'm well aware of how great some of canon's lenses are too!)
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There are consumer grade and pro grade lenses in both types. Buying one over the other does not automatically mean you got the better lens.
AF-D lenses are autofocus, with or without a manual aperture ring. They require a focus motor in the body of the camera to operate in AF mode. The D designation means the lens provides focus distance information to the camera, mostly for flash exposure determination. Those that do not have a focus ring are also designated as G lenses.
AF-S lenses have the focus motor built into the lens, and do not have an aperture ring. Focusing tends to be faster than the body-motor lenses, and much quieter.
As for quality, you get what you pay for, regardless of the AF-S designation.
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When Nikon stopped putting a focusing motor in their entry-level DSLR cameras - D40, D40x, D60, D3000, D3100, D5000, D5100 - they introduced the more expensive AF-S lenses with a focusing motor in the lens body. They also eliminated the aperture ring on the AF-S lenses.
Apparently there were enough consumer complaints about the cost disparity between the AF 50mm f1.8 prime lens that wouldn't focus on the aforementioned entry-level bodies and the AF-S 50mm f1.4 that would auto focus on them that Nikon introduced the AF-S 50mm f1.8. This lens is about $90.00 more than the old AF 50mm f1.8 but still considerably less than the AF-S 50mm f1.4 version.
I rather doubt you'll see any real difference in performance between the AF and AF-S lenses since Nikon has always been known for the quality of their optics.
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