Dust in Olympus 45mm lens

Discussion in 'Native Lenses' started by BigMike, Jul 13, 2015.

  1. BigMike

    BigMike Mu-43 Regular

    Jul 19, 2012
    Maybe it's just my bad luck, but I have had obvious dust in the front element on two brand new Olympus 45mm lens received. Is this the norm/expected given it's relatively cheap price.
  2. stripedrex

    stripedrex Do or do not. There is no try.

    Jun 8, 2012
    Long Island, NY
    Real Name:
    I have them in mine also. Vacuum with the host attachment and round brush helps quite a bit. Keep in mind when you clean the glass to not push dust into the perimeter. On mine I believe that's where it gets in.

    For the most part they don't show up in the pix. On occasion in OOF areas I'll barely see them. I have to be looking for it.
  3. BigMike

    BigMike Mu-43 Regular

    Jul 19, 2012
    yeah, not too concern from an IQ perspective but 1) many prospective buyers do like a dust free lens, so may impact resale value and 2) thought Olympus would have better QC in this regard.
  4. gryphon1911

    gryphon1911 Mu-43 All-Pro

    Mar 13, 2014
    Central Ohio, USA
    Real Name:
    Every lens maker and every lens, regardless of price has this very same issue. Is is extremely difficult to keep all dirt out of a lens during assembly or repair.
  5. jazzuk777

    jazzuk777 Mu-43 Rookie

    Jul 3, 2015
    In my naiveté I thought that was a big part of the reason some (admittedly precision-ground) glass and plastic costs £150 plus!
  6. piggsy

    piggsy Mu-43 Top Veteran

    Jun 2, 2014
    Brisbane, Australia
    It's uh, surprisingly low tech -

    ^ my favorite bit in this is the lady with long hair and no hair net going - "I'm done cleaning this element, so I'll put it on this table while I clean the other one. Oops better put it under a plastic tumbler to make sure it stays clean!" :D

    But yeah, money wise - lots of custom machinery, lots of manual labour checking the results, very expensive big flawless pieces of optical glass being worked etc etc.
    • Like Like x 1
  7. xvvvz

    xvvvz Mu-43 Regular

    Jul 2, 2013
    This lens seems more susceptible to dust than average. You sure do see a relatively high number of posts about it and a lot are in reference to brand new lenses.
  8. Clint

    Clint Mu-43 All-Pro

    Apr 22, 2013
    San Diego area, CA
    Real Name:
    Dust inside of lenses is normal. A lens cannot be sealed against the atmospheric air, if it were the vacuum would stop you from focusing - and then occasionally some dust will get in and maybe even some pushed out. Be careful what you look for, some people have found spiders inside their lenses!
    • Like Like x 1
  9. phigmov

    phigmov Mu-43 Hall of Famer

    Apr 4, 2010
  10. piggsy

    piggsy Mu-43 Top Veteran

    Jun 2, 2014
    Brisbane, Australia
    There was this on lensrentals a while ago too :D