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micro4/3 40-150 or MMF2 with 4/3 40-150?

Discussion in 'Adapted Lenses' started by QualityBuiltIn, Jan 1, 2011.

  1. QualityBuiltIn

    QualityBuiltIn Mu-43 Veteran

    351
    Jan 1, 2011
    Edinburgh, Scotland
    I'd like to buy a 40-150mm lens to supplement the kit lens on my E-P1.

    Olympus make a 40-150mm on a micro four thirds mount at almost £300 and they make a 40-150mm for the other E-series cameras readily available for around the £100 mark but that needs an adapter, MMF 2 also about £100.

    What is the practical difference? Obviously I save about £100 buying the 2-part solution and it also opens up options for other four thirds lenses but are there limitations, quality consequences or crop factor issues?

    Thanks,

    QBI
     
  2. Mikmos

    Mikmos New to Mu-43

    4
    Dec 8, 2010
    Would like to know that too. Im also looking at the Panasonic 45-200.
     
  3. There are no 'crop factor' issues. Both 4/3 and m4/3 lenses are designed for the same size sensor. The 4/3 40-150mm is a nice lens with no particular vices. Your decision will come down to smaller size and weight (m4/3) vs price and how useful a MMF-2 adapter is to you.
     
  4. QualityBuiltIn

    QualityBuiltIn Mu-43 Veteran

    351
    Jan 1, 2011
    Edinburgh, Scotland
    Thanks very much for the advice. Looks like the 2-part option is the one for me: Less cost and more future with other 4/3 lenses.

    Cheers,

    QBI
     
  5. pdh

    pdh Mu-43 Top Veteran

    598
    May 6, 2010
    but note also that with many 4/3 adapted lenses you will experience much much slower AF speeds ... unless the 40-150 is an exception
     
  6. Oh yeah, should have mentioned that. AF speed is...okay. As in compact camera okay. Certainly better than on earlier 4/3 lenses. Olympus obviously has faith in it though, as the 4/3 40-150mm + MMF-2 was the kit telephoto lens for the E-PL1 for a while.
     
  7. GaryAyala

    GaryAyala Mu-43 Legend

    Jan 2, 2011
    SoCal
    Welcome to Photozone!

    Is a site which performs laboratory tests on lenses and Klaus has tested a few 4/3rds lenses. I always see what Klaus has to say before I purchase a lens.

    Gary
     
  8. Andrew Riddell

    Andrew Riddell Mu-43 Regular

    41
    Aug 21, 2010
    London
    When I bought my EP-2, it came with a free MMF-1 adaptor and I bought a used FT 40-150 for £50. For me, a 'no brainer'! Mind you, I don't go for action shots, so I'm not particularly concerned about AF speed.

    Andrew
     
  9. robertro

    robertro Mu-43 Veteran

    223
    Apr 22, 2010
    Photozone does have a review of the 4/3 40-150, but does not address AF speed on 4/3 or on M4/3. It also doesn't review the m4/3 40-150 yet.

    I have the 4/3 40-150 and MMF2 and use them on an E-PL1. I'd say that the image quality is quite good; probably better than the 14-42 m4/3 lens. The AF performance is fine in decent conditions, and very slow in low-light conditions - nothing unusual there.

    Out of curiosity, I compared AF speed at 40mm between the m4/3 14-42 and the 4/3 40-150 under difficult conditions. I set the camera to center focus, aperture priority at f5.6 and tried it on a variety of subjects in a moderately-lit room this evening.

    The higher-contrast subjects (table leg; eyes) seemed to focus almost equally quickly; the lower-contrast subjects (woodgrain; my wife's hair) failed to focus most of the time with the 14-42, and focused most of the time with the 40-150. The speed was not significantly different; if anything the 40-150 was slightly slower, but I couldn't be sure. The 14-42 seemed to go through a larger focus range to achieve focus. When I tested the 40-150 on the same subjects at 150mm, it behaved similarly to the 14-42 at 40mm, failing to achieve focus on lower-contrast subjects. This suggests that f5.6 behaves the same on both lenses, and the benefit of the 40-150 is the f4 aperture at 40mm.

    For me, the 4/3 40-150 with adapter seems to be one of the great bargains of the m4/3 world and having read some of the commentary from 40-150 m4/3 users, I'm not convinced that it is any faster or more reliable to focus (it is smaller though). The extra bonus for me is that I can use the m4/3-4/3 adapter with less bulky legacy lens to 4/3 adapters to use manual focus glass.