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OM-D MF (manual focus) and infinity ∞

Discussion in 'Olympus Cameras' started by britops, Sep 15, 2012.

  1. britops

    britops Mu-43 Regular

    79
    Apr 10, 2012
    I'm trying to quickly find infinity in manual focus quickly. It appears that its in the middle and any clockwise/anticlockwise rotation blurs. How can I guarantee actual infinity. (photo of night sky etc)

    edit: I'm using OM-D and Zuiko 40-150mm & 12-50mm kit lens
     
  2. edmsnap

    edmsnap Mu-43 Veteran

    430
    Dec 20, 2011
    Edmonton, Alberta
    Adapters always focus past infinity to ensure that your specific lens will be able to focus to infinity. The only way to be in focus with a manual focus lens is to focus it properly. You can always stop it down some if you're close but unsure.
     
  3. speedandstyle

    speedandstyle Mu-43 Hall of Famer

    Not ALL adaptors do that although some do.

    @britops
    Are you using an adapted lens? or a native one?
     
  4. Tincam

    Tincam Mu-43 Regular

    65
    Apr 25, 2012
    Iowa
    Matt
    That's correct, not all adapters do this. My Nikon Ais lenses stop right at infinity with my fotodiox adapter.

    If using a native lens, autofocus on a bright area far away (moon, star) then turn AF off.
     
  5. newbert

    newbert Mu-43 Veteran

    292
    Jul 22, 2012
    Glens Falls, NY
    Anyone know how to report this spammer?
     
  6. m43dex

    m43dex Mu-43 Veteran

    242
    Mar 5, 2011
    Michigan
    I already did
     
  7. newbert

    newbert Mu-43 Veteran

    292
    Jul 22, 2012
    Glens Falls, NY
    I just did too, Thanks! ( I REALLY can't stand these guys....)
     
  8. usayit

    usayit Mu-43 Hall of Famer

    Yeh.. did too this morning.

    PS> the triangle/bang symbol at the top right to report spammers.
     
  9. newbert

    newbert Mu-43 Veteran

    292
    Jul 22, 2012
    Glens Falls, NY
    Thanks for the tip -- easier than sending a PM, like I did. :smile:
     
  10. TDP

    TDP Guest

    What camera and lens?

    I use native MF lenses and adapted legacy lenses more than AF lenses. Native MF lenses often focus a bit past infinity. If an apadpted lens focuses too far past infinity your adapter needs to be modified to move it farther away from the sensor - if you care about your MFD.

    On my EM5 I use the viewfinder zoom option to fine tune my focus when I shoot at wide apertures.
     
  11. britops

    britops Mu-43 Regular

    79
    Apr 10, 2012
    OM-D E-M5 & Zuiko 40-150mm kit lens
     
  12. britops

    britops Mu-43 Regular

    79
    Apr 10, 2012
    anyone?
     
  13. speedandstyle

    speedandstyle Mu-43 Hall of Famer

    The big reasons I do not like the focus by wire lenses is that infinity and closest focus can be hard to find. However I have never heard of one that focused beyond infinity. All that I have used focus to a point and then stop but the ring still turns. It would be nice if they would have some sort of indicator letting you know you reached the limit. Infinity shouldn't be in the middle - it should be at one end or the other. Check the camera settings. I know the PENs you can change which way the rotation goes, maybe on the E-M5 you can set infinity to center?