K10D indoor light auto focus hunting question

Discussion in 'Digital SLR' started by rboy505, Apr 28, 2007.

  1. rboy505

    rboy505 Guest

    This may be a weakness of the camera, but since this will be my first
    DSLR, coming from a Canon A640 I'm curious how relative it is to my
    own indoor dealings with auto focus. It's obviously a great camera,
    and if the low light auto focus criticism is relative to other DSLRs
    and still no worse than an A640 (which has not annoyed me in that
    regard), I won't be too much bothered by it.

    Also, I tend to always bypass any multi-point auto focus on any camera
    I use and stick with single, center point focus, (moving the camera
    first to focus on something else then moving back, if a different
    focus point is desired) because, well, I had been doing that for years
    when it was the only option I had, and usually on newer cameras when
    I'd try it I'd go back. So I wouldn't use multi point on the K10D

    So I'd love thoughts on those two points: if the K10D low light auto
    focus isn't that bad compared to something like the A640; and does
    staying in single point focus alleviate some of the hunting.

    Thanks very much,

    rboy505, Apr 28, 2007
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  2. rboy505

    Pete D Guest

    How well AF works will depend on how good your lens is, what lens are you
    Pete D, Apr 28, 2007
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  3. rboy505

    rboy505 Guest

    Don't have it yet. I know it's slow to the point of unacceptable to
    some with the kit lens indoors. But I've also read where it will
    hunt for a few seconds in only moderately low light with a faster lens
    that wouldn't do so on another camera. This is a concern because I
    forsee doing a lot of indoor shooting where I have no control over the
    light, and was wondering exactly *how* sluggish people are talking
    about even with better lenses. If I went with the K10D I would be
    looking at a better lens for indoor but only a prosumer step up or
    two, like a Pentax DA 50-200mm f/4-5.6 ED or Sigma 18-50mm EX DC,
    though I've only begun to explore this.

    I won't be shooting indoor sports so I'm not talking about a lens that
    catches that kind of action especially well, but I don't want to be
    sitting there while it hunts around making mini adjustments while I'm
    trying to catch a moment.

    Trying to stay below $400 for a first decent lens that would be my
    only other one besides the kit.

    Anyone using the Pentax with a good indoor zoom who is still unhappy
    with using it indoors (without flash) due to the auto focus?

    rboy505, Apr 28, 2007
  4. rboy505

    DW Griffi Guest

    Actually, there are quite a few posts on the Pentax forum like these:



    Most likely there are inconsistencies between cameras, because people
    keep responding to these that it's operator error because it doesn't
    happen to them. But many experienced shooters are running into this on
    the K10D. Sounds like a fair amount of cameras with varying degrees of
    an auto focus defect, above and beyond the usual low light hunting.

    Buy it from a reputable dealer in case you need to send it off.
    DW Griffi, Apr 29, 2007
  5. rboy505

    DW Griffi Guest

    DW Griffi, Apr 29, 2007
  6. rboy505

    rboy505 Guest

    I'm in some of those threads! : ) There's more varied traffic here
    so I asked here. Plus, I figured that if someone had a bad
    experience with, for example, a Pentax, there'd be a good chance their
    posts about it would be in a more general forum, especially if that's
    where they hang anyway.

    It does seem like not all K10D's are the same.
    rboy505, Apr 29, 2007
  7. rboy505

    Paul Mitchum Guest

    More likely, it's that not all users are the same. Whether autofocus
    'works' or not is purely a measure of expectation.

    The kit lens (18-55) on my *istDS will hunt in low-light situations,
    because it's not a very fast lens. My handy-dandy ever-lovable Pentax FA
    50/1.4 hunts for autofocus in low-contrast situations because the depth
    of field is so narrow at f/1.4.

    Also, if you think people may have talked about this topic on a
    newsgroup, you can search it with groups.google.com and get more answers
    and less snark. :)
    Paul Mitchum, Apr 30, 2007
  8. rboy505

    rboy505 Guest

    Paul, I did a Google and ended up concluding there is clearly a
    problem that is neither related to lenses nor operators. More than a
    few people for whom the auto focus simply goes bonkers.

    rboy505, Apr 30, 2007
  9. I went through two K10Ds with several problems, including this one,
    before I swapped it for a D80.
    Oliver Costich, Apr 30, 2007
  10. rboy505

    Pete D Guest

    What lens were you using on the K10Ds?
    Pete D, Apr 30, 2007
  11. rboy505

    spigmu Guest

    For some the lens mattered, for others it didn't. There is clearly a
    manufacturing/mechanical/design/firmware issue that is affecting a
    small percentage of K10D's. Google "K10D auto focus problem" and
    while there are obviously plenty of people posting with cameras and
    lenses that are not at fault, this is not the case with some of
    them. Worse, I don't know of any Pentax repair shop in NYC that
    prepared to troubleshoot the model. PhotoTech says Pentax still
    hasn't supplied them with info or materials. User needs to ship back
    to Pentax.

    Not that other cameras don't have these kinds of quirks that create
    urban myths. People are still debating whether their D80's have
    broken metering or if XTi's have exposure problems. I'm not bashing
    it, it's a great camera. But this an actual problem which gets poo
    poo-ed because probably at least 90% of them don't have it.
    spigmu, Apr 30, 2007
  12. The 18-55 and 50-200. Also went through two Pentax flash units that
    had problems.
    Oliver Costich, May 2, 2007
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