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Focus speed: 45-200 vs 100-300

Discussion in 'Native Lenses' started by jeffryscott, May 9, 2012.

  1. jeffryscott

    jeffryscott Mu-43 Top Veteran

    Jul 2, 2010
    Sure this has been talked about, but can't find it anywhere. Not interested in discussions of optical quality or zoom range, just curious about how the AF is on the 100-300 compared to the 45-200

    I just got the 45-200, upgraded firmware to 1.3 and focus speed on the OM-D is not bad, but just curious if the 100-300 is quicker?

    Anybody who has or had both that can chime in?



    (Ultimately I want the 100-300, but for the price the 45-200 was hard to pass up and can free up funds for other goodies, but, I may still be tempted to return the 45-200 and go ahead and get the 100-300)
  2. Jonathan F/2

    Jonathan F/2 Mu-43 Hall of Famer

    Aug 10, 2011
    Los Angeles, USA
    The 100-300 is pretty quick. I can't remember how fast, but focus speed was never an issue with that lens when I had it.
  3. jeffryscott

    jeffryscott Mu-43 Top Veteran

    Jul 2, 2010
    So after having the 45-200 for two weeks, AF speed is questionable. Getting a lot of misses with my girls' (7, 10) swimming. I am really wondering if the 100-300 would function better in regards to AF speed.

    I have tried many variations with the OM-D AF system, lens has latest firmware as does the body. I'm not expecting 100%, but these are two slow moving kids. I've not tried my other lenses (14, 14-42 and 45) as they would be useless in this situation.

    Somewhere I saw photos of two dogs running toward the camera that were tack sharp using the OM-D and the Oly 75-300. I figure if the 100-300 is similar in performance, the swimming percentages would increase dramatically.

    Thanks for any insight anyone has to offer.
  4. robknight

    robknight Mu-43 Regular

    Oct 15, 2011
    Atlanta, GA
    I had the 100-300 and sold it because I found it painfully slow to focus on the E-P3. It seemed to hunt even in good light with a single focus point selected. I got the 45-200 a couple of weeks ago and had good luck with it shooting 300mph dragsters. I was shooting the 45-200 on an E-M5 and it seemed to focus as fast as the Nikon 70-200 on my D800e that I was using the same day.
  5. WT21

    WT21 Super Moderator Subscribing Member

    Feb 19, 2010
    Have you tried the Oly 40-150??? Cheap, quick and relatively sure focus (as much as can be expected on the long end). I think it focuses faster than my 100-300, but then again it doesn't provide near the reach.

    For Oly bodies, it's a solid choice.
  6. iGonzoid

    iGonzoid Mu-43 Veteran

    Feb 6, 2011
    Tasmania, Australia
    Hi, JS mentioned the Oly 75-300. I had the Four Thirds version and used it with an Oly 4/3-to-m4/3 adaptor on my EP-2. Good optical performance wide open at a Leonard Cohen concert but long-distance focus problems. It did a lot of searching in low light conditions, especially at long focal distances. Occasionally at 300mm it would get totally lost. Ended up depending on manual focus for critical light. In January I sold it and upgraded to the Lumix 100-300 m4/3, to go with my new GH2. Decision was made on the basis of the Lumix lens having Mega OIS, which the GH2 body lacks. The EP-2 body does a good OIS job. Very happy with the 100-300 — much faster and surer auto focus and nice smooth zoom and manual focus rings. The Oly was less than smooth and had a kind of "grind" feeling in it's manual focus ring. The Lumix is now my chief rock concert and wild bird lens. Beautifully sharp wide open. Handy with larger insects too, but a pity that the closest focus is 1.5m. I have just ordered a set of Kenko auto extension rings and hope that will help remedy that a bit.
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