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Nikon D3100 Continuous Autofocus Tests

One of the features that Nikon emphasized when they announced the D3100 was HD video with continuous autofocus, the first of its kind in DSLRs. Sure it sounded great on paper, but how well does it work in the real world? Here are a couple videos showing the D3100’s continuous autofocus in action, created by Oscar Cheng.

I don’t know about you, but my impression is that the focus hunts too much, is too slow, and is too loud. Maybe (hopefully) this is due to using a bad lens in low light?

What do you think?

(via Photography Bay)


 
  • http://www.plainjoephotoblog.com isayx3

    I think for family shooters it’s fine….people who are more serious will stick to MF…which will always be the case.

  • Anonymous

    I agree, I think it’s pretty unusable. Manually focusing for videos may be more work but it’s less erratic and noticeable than this.

  • http://twitter.com/HeberC Heber Coll

    Yeah, seems unusable to me. Would be better to see a test with a better lens though.

  • Cliff

    My only extensive video camera experience is with my Canon HF200 and I would consider the D3100 unusable for video based on this clip. Autofocus *must* work faster and hunt less or else it’s uncomfortable to watch.

  • http://twitter.com/chungdha Chung Dha Lam

    They have to make it search way less, hope Canon could do a better job atleast they have proper experience with it on real movie camera’s so should be easy to develope for them.

  • http://twitter.com/Robertv Robertv

    That’s awful focus control. A pointless feature when presented like that.

    Forgiving the noise (Who uses on camera mics FFS!?) the focus hunting was quite distracting to watch, especially as it missed the spot often.

  • SLProv

    Horrible! Granted, he was panning the camera rather quickly. But still, there’s nothing “continuous” about the autofocus in what I’m seeing from this sample.

  • Nfocado

    I hope it could be switched off.

  • http://twitter.com/zak Zak Henry

    The lens sounds like an AF-D lens, which are fairly crap at quick focus. I’m always surprised at how quickly and quietly my AF-S lens finds the spot. I do wonder if the hunting isn’t just lens related though as it must be contrast focusing which is never fast.

  • http://twitter.com/zak Zak Henry

    The lens sounds like an AF-D lens, which are fairly crap at quick focus. I’m always surprised at how quickly and quietly my AF-S lens finds the spot. I do wonder if the hunting isn’t just lens related though as it must be contrast focusing which is never fast.