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Tight lens mount - Olympus 12-50

Discussion in 'Native Lenses' started by davidzvi, Aug 20, 2014.

  1. davidzvi

    davidzvi Mu-43 All-Pro

    Aug 12, 2012
    Outside Boston MA
    David
    Just got an Olympus 12-50 and the lens mount is very tight on both my E-M1 and E-P5.

    Should I be concerned? It goes no, latches, and releases so the mechanism seems to be working. It just takes almost what I would call a forceful turn to mount. Surely more force than I can ever remember having to use in a lens in the past.
     
  2. EarthQuake

    EarthQuake Mu-43 Top Veteran

    832
    Sep 30, 2013
    The 12-50 is weather sealed, if its anything like my 12-40, it has a rubber gasket that makes the mount tighter, so this is probably normal.
     
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  3. Jonathan F/2

    Jonathan F/2 Mu-43 Hall of Famer

    Aug 10, 2011
    Los Angeles, CA
    Mine is the same, I presume that's normal.
     
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  4. Robstar1963

    Robstar1963 Mu-43 Top Veteran

    895
    Jun 10, 2011
    Isle of Wight England UK
    Robert (Rob)
    Hi
    I have had several Olympus metal mount lenses which are a tight fit on bodies including a 45mm f1.8 on my E-M10
    This is not unusual and nothing to worry about
    Regards
    Rob
     
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  5. hazwing

    hazwing Mu-43 All-Pro

    Nov 25, 2012
    Australia
    I seem to remember my sample of 12-50 (which I have since sold), was also tight.
     
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  6. Dayam

    Dayam Mu-43 Regular

    147
    Jan 15, 2014
    Singapore
    Dave
    My recently bought O25 is quite tight as well.
     
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  7. davidzvi

    davidzvi Mu-43 All-Pro

    Aug 12, 2012
    Outside Boston MA
    David
    Thanks all. I had a 45, I don't recall it being as tight. But it might have been.

    I have nice collection of glass but the 12-50 is the only Olympus sealed lens I have. The Panasonic 35-100 is not as tight.
     
  8. zensu

    zensu An Old Fool

    Aug 8, 2012
    Southeastern USA
    Bobby
    Same here.
     
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  9. a_hit_of_meth

    a_hit_of_meth Mu-43 Veteran

    243
    Jan 7, 2012
    I tried one today on my E-m5 which fit quite effortlessly, should I be worried?
     
  10. zensu

    zensu An Old Fool

    Aug 8, 2012
    Southeastern USA
    Bobby
    I wouldn't worry as long as the lens is functioning properly. Could be Olympus heard about this issue and made adjustments at the point of assembly to correct this minor problem. Maybe weather sealing is a factor but I doubt it, sold my 12-50 for the pro 12-40 and it's also weather sealed but mounts much easier than my 12-50 ever did.
     
  11. a_hit_of_meth

    a_hit_of_meth Mu-43 Veteran

    243
    Jan 7, 2012
    Would dust be a problem? I know these are dust and water sealed but even L lenses sometimes get dust and these are nowhere near that level of dust/water proofing.
     
  12. zensu

    zensu An Old Fool

    Aug 8, 2012
    Southeastern USA
    Bobby
    I also use the Oly 60mm macro and it too is weather sealed but doesn't mount as tightly as the 12-50 did. The 12-40 and the 60 macro fit snug but neither is as tight as my old 12-50 was. I get a feeling that both of these lenses seem to 'click' in place when mounted. The 12-50 never felt like it 'clicked' in place but it did work flawlessly every time it was mounted.
     
  13. chargedmr2

    chargedmr2 Mu-43 Regular

    30
    Mar 26, 2014
    A while back a poster complained about this issue and the solution, at least in his case was simple: touch your finger to the side of your nose where there is natural skin oils. Next rub your finger over the surface of the lens mount on the camera. Problem should be noticeably better. Repeat these steps a couple of times as necessary, until the lens mounts in an acceptable way.

    Sounds a little strange, but this solved a dangerously tight lens mount problem I had with my E-M10 and 9-18mm. Mounting went from ridiculously hard, to perfectly normal.
     
    • Like Like x 3
  14. ozfoz

    ozfoz Mu-43 Regular

    29
    Dec 8, 2012
    Brisbane
    Hi,
    Just a caution when using the nose oil method- there's also the chance of picking up salt from sweat which can lead to corrosion. It's a great quick fix though. I learnt it in relation to the film gate in a 16mm camera- it was an old trick to keep the film moving smoothly through the gate. I guess it's only a potential problem for steel parts, and to be honest, I don't know what material the OMD mount is made of (and since I've just sold my OMD I can't check! (Still have an EP3 though)).
    Anyway, not criticizing the suggestion, just sharing the caution that was shared with me when I learnt the trick...



    Sent from my iPhone using Mu-43 mobile app
     
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