Why won’t my Nikon AF 50mm f/1.8D autofocus on a D610 when AF-S lenses do?
Asked 1/7/2020
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I’m using a Nikon D610. My AF-S lenses autofocus normally, but my Nikkor AF 50mm f/1.8D does not. The same happens with a Yongnuo 50mm f/1.8 AF lens, even though it has an AF/MF switch on the lens. I expected the D610 to autofocus with AF lenses as well. Are these lenses incompatible with the D610, or does this point to a camera problem?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
6y ago
2 Answers
1
AF lenses use a camera's screw drive motor, which the D610 has. The AF-S lenses use a focus motor that is built into the lens instead.
There is nothing different required settings/control wise to make an AF lens focus compared to an AF-S lens. So I suspect there is a problem with the 610's screw drive and it needs repaired... it might just be stuck in the retracted position.
Originally by user70370. Source · Licensed CC BY-SA 4.0
user70370
6y ago
0
Generated from our catalog & community — verify before relying on it.
The Nikon D610 should autofocus with both AF and AF-S lenses.
The key difference is how they focus:
- AF / AF-D lenses use the camera body’s screw-drive autofocus motor.
- AF-S lenses have their own focus motor in the lens.
Since your AF-S lenses focus normally, but both your AF 50mm f/1.8D and the Yongnuo AF lens do not, that suggests the issue is not lens compatibility. Based on the symptoms, the most likely problem is that the D610’s screw-drive autofocus mechanism is not working correctly, possibly needing repair or being stuck/retracted.
There generally isn’t a different autofocus setting required for AF vs. AF-S lenses on the D610, so this is unlikely to be operator error if AF-S works fine.
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