1. Pmba

    Pmba

    Messages:
    297
    Name:
    Paul
    Edit My Images:
    Yes
    I bought a new one of these a few weeks back and only just started using it, really like the lens.

    But I've noticed what looks like a speck of dust deep within the lens elements - no effect on images but should that be grounds for requesting an exchange? Canon QC issue?

    TIA
     
  2. StewartR

    StewartR Efrem Zimbalist Jr Advertiser

    Messages:
    11,554
    Name:
    Stewart with a 'w'
    Edit My Images:
    Yes
  3. soupdragon

    soupdragon

    Messages:
    927
    Name:
    Tony
    Edit My Images:
    Yes
    yes
     
  4. Canon Bob

    Canon Bob Loves the Enemy

    Messages:
    10,219
    Name:
    Bob
    Edit My Images:
    Yes
    My approach would be to close your eyes and look through the lens.....if you can't see the dust anymore then keep the lens.
     
    john.margetts likes this.
  5. stevelmx5

    stevelmx5

    Messages:
    9,171
    Name:
    Steve
    Edit My Images:
    No
    If it has no effect on images (as it won't), why should it be exchanged?
     
    john.margetts likes this.
  6. woof woof

    woof woof

    Messages:
    18,698
    Name:
    Alan
    Edit My Images:
    No
    Most lenses will end up with something visible inside if you look closely enough but it would need to be BIG to have a effect on the picture so unless it's an absolute boulder I'd say it doesn't matter.
     
  7. Pmba

    Pmba

    Messages:
    297
    Name:
    Paul
    Edit My Images:
    Yes
    Thank you for the replies, almost unanimous. I'll define "speck", if I can get a photo of it. Reason for my asking is that none of my other lenses have anything similar and therefore that sets my expectation for this latest one.
     
  8. Mike.P

    Mike.P

    Messages:
    4,183
    Edit My Images:
    No
    Trouble is if you are having second thoughts about it .... should you ever decide to sell it on will the next prospective owner try and knock you down in price because of it.?

    Why take the chance?
     
  9. Pmba

    Pmba

    Messages:
    297
    Name:
    Paul
    Edit My Images:
    Yes
    Very good point
     
  10. maarten.dhaese

    maarten.dhaese

    Messages:
    568
    Name:
    Maarten
    Edit My Images:
    Yes
    It will not affect your images but it might affect resale value.

    For a new lens I would exchange it or get it cleaned under warranty.
     
    Mr Badger likes this.
  11. Pmba

    Pmba

    Messages:
    297
    Name:
    Paul
    Edit My Images:
    Yes
    Here's a pic showing the issue, bottom right.
    Not acceptable to me so will return for exchange. IMG_20180915_141557.jpeg
     
    Mr Badger likes this.

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