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Lumix 45-200mm focus speed.

Discussion in 'Native Lenses' started by noelh, Apr 5, 2011.

  1. Under certain conditions the 45-200mm seems to search for the focus point. Low contrast where the subject blends in with the background, foreground. Lens at the long end +160mm. Subject is small but relatively close. Missing a few potential bird images due to AF searching to find the correct focus. Not an issue with the other lens.

    Have set the focus area to the smallest box, no Pre AF and set the AF to AFS.
    Starting to rely more on MF or AF+MF. Bit quicker under some situations.

    Any recommendations to speed up the process?

    For those who have used both the 45-200 & 14-140mm lens have you noticed any significant difference in the speed of the lens to focus onto the subject?
  2. ~tc~

    ~tc~ Mu-43 Hall of Famer

    Oct 22, 2010
    Houston, TX
    Minimum focus distance is quite a ways out there. Be sure you're not too close!
    • Like Like x 1
  3. Lens barrel notes 1m to infinity. Images attempts have been ~3m or further.

    This AM with the bright low morning sun hitting a gold finch the lens was able to focus relatively fast on the bird. But under the same light focusing on a terracotta pot the lens would not focus. Thinking maybe I went the opposite direction regarding the size of focus box. Set the box to the largest possible size. Seems to have solved the focus speed issue. Makes a bit of sense when you consider under dim light conditions the camera sometimes automatically enlarges the box.
  4. ~tc~

    ~tc~ Mu-43 Hall of Famer

    Oct 22, 2010
    Houston, TX
    Remember it needs some contrast to focus on. It will have a hard time focusing on the center of a tile, but will snap right to focus on the edge.
  5. Alanroseman

    Alanroseman Super Moderator Emeritus

    Dec 21, 2010
    New England
    Hi TC and Noel,

    Good advice TC, we should mention that the camera body comes into play here as well. The 45-200 seems to perform better, speed wise, on different Panny Bodies.

    I no longer have an Oly body so can't speak to that side.

    Thanks, Alan
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