How do I clean the lense of paint. well, literally!

Discussion in 'Off Topic Chat' started by gendarmee, Oct 22, 2008.

  1. gendarmee

    gendarmee TPF Noob!

    Joined:
    Dec 30, 2006
    Messages:
    123
    Likes Received:
    0
    Can others edit my Photos:
    Photos OK to edit
    A teenage cousin came home for spending the day...wanted too check out my camera and i let him, he took pics... what he called "close up" snaps of the nip of a pen.
    Turned out later that lense has got one fat blob and couple thick streaks of black permanent marker on it.
     
    Last edited: Jun 28, 2010
  2. Josh66

    Josh66 Been spending a lot of time on here!

    Joined:
    Oct 31, 2007
    Messages:
    14,604
    Likes Received:
    1,236
    Location:
    Cedar Hill, Texas
    Can others edit my Photos:
    Photos NOT OK to edit
    MEK, MPK, Acetone (nail polish remover), or something similar will take it off easily (any hardware store should carry those). It may also melt the plastic parts of the lens (if any) if you allow it to come in contact with them, and I don't know what it will do to the coatings on the lens. This should be the last resort (I would mostly be worried about it damaging the coatings).

    Isopropyl Alcohol might work too, and I don't think it will damage the lens coatings.
     
  3. PlasticSpanner

    PlasticSpanner TPF Noob!

    Joined:
    May 1, 2005
    Messages:
    4,125
    Likes Received:
    51
    Location:
    Cheshire, England
    Can others edit my Photos:
    Photos NOT OK to edit
    Take your cousins balls, twist them round & squeeze them flat to make a chamois cloth.............

    I really don't know what you can use that won't affect the surface coatings of the lens!

    You could start by using the same marker pen to draw a few samples on a scrap peice of glass or tile & see what will remove it e.g acetone, nail varnish remover, alcohol etc.
     
  4. Overread

    Overread has a hat around here somewhere Staff Member Supporting Member

    Joined:
    May 1, 2008
    Messages:
    23,101
    Likes Received:
    3,767
    Location:
    UK - England
    Can others edit my Photos:
    Photos OK to edit
    sadly unless the lens is a top range L of which some have a clear glass front (mostly the long telephotos) then I think any cleaning will lead to damage to the coatings on the lens -- if its out of warrenty then its going to be tricky - might be worth seeing how much repaire will cost you
     
  5. matt-l

    matt-l TPF Noob!

    Joined:
    Dec 20, 2007
    Messages:
    2,707
    Likes Received:
    0
    Location:
    Newfoundland..Due East
    Can others edit my Photos:
    Photos NOT OK to edit
    If your teenage cousin has a job, i would send it to Canon on his dime.
     
    Last edited: Oct 22, 2008
  6. Josh66

    Josh66 Been spending a lot of time on here!

    Joined:
    Oct 31, 2007
    Messages:
    14,604
    Likes Received:
    1,236
    Location:
    Cedar Hill, Texas
    Can others edit my Photos:
    Photos NOT OK to edit
    The problem is that any of those chemicals will remove it from glass (and the lens) - the only question is what it will do the the coatings on the lens (which won't be on the test glass).
     
  7. Josh66

    Josh66 Been spending a lot of time on here!

    Joined:
    Oct 31, 2007
    Messages:
    14,604
    Likes Received:
    1,236
    Location:
    Cedar Hill, Texas
    Can others edit my Photos:
    Photos NOT OK to edit
    First I would try to rub it off with a t-shirt or microfiber cloth (dry), that might actually get it off it the coating prevented it from making a good bond to the glass (not sure how likely that is, but it's worth a try).

    EDIT
    Soapy water might work, and will be the least harmful to the lens.

    Have you tried regular lens cleaning solution? I don't know why I didn't think of that before.
     
    Last edited: Oct 22, 2008
  8. Josh66

    Josh66 Been spending a lot of time on here!

    Joined:
    Oct 31, 2007
    Messages:
    14,604
    Likes Received:
    1,236
    Location:
    Cedar Hill, Texas
    Can others edit my Photos:
    Photos NOT OK to edit
    It's probably pretty much the same thing. It might even be safer - most glasses are plastic, not glass, and they often have similar coatings to what you would find on a camera lens.

    Try that, or soapy water - if neither of those work, rub harder, lol.

    I would be very hesitant to use something like MEK (Methyl Ethyl Ketone) or Acetone (very similar to MEK) on a lens. (MPK=Methyl Propyl Ketone - slightly less harmful than MEK but worse than acetone.)
     
  9. Hawaii Five-O

    Hawaii Five-O My alter-egos have been banned. :( Now I must be

    Joined:
    Jun 2, 2008
    Messages:
    1,099
    Likes Received:
    0
    Can others edit my Photos:
    Photos OK to edit
    You could email Canon and see if they say anything about removing the marker.
     
  10. Ls3D

    Ls3D TPF Noob!

    Joined:
    Dec 15, 2007
    Messages:
    1,279
    Likes Received:
    3
    Location:
    Encinitas Cali
    Can others edit my Photos:
    Photos NOT OK to edit
    :lol:

    :lol:

    I prefer High-Karate for my nicer equipment!

    -S
     
  11. Mitica100

    Mitica100 Moderator Staff Member Supporting Member

    Joined:
    Nov 11, 2003
    Messages:
    9,746
    Likes Received:
    42
    Location:
    Ahwatukee, AZ
    Can others edit my Photos:
    Photos NOT OK to edit
    Permanent marker is dissolved by alcohol. Take a Q-tip, wrap it in some microfiber cloth (the finer the better and absolutely no cotton) and add a drop or two of 70% or 90% rubbing alcohol from your local Pharmacy. Do not rub, just hold the Q-tip with alcohol on the spot(s) to allow the alcohol to penetrate. Now, take another clean microfiber cloth and very gently try to rub the spots out going in spiral motion, from the center of the lens towards the rims. Do not put pressure on the cloth, be very gentle. That should do the trick.
     
  12. Josh66

    Josh66 Been spending a lot of time on here!

    Joined:
    Oct 31, 2007
    Messages:
    14,604
    Likes Received:
    1,236
    Location:
    Cedar Hill, Texas
    Can others edit my Photos:
    Photos NOT OK to edit
    Yeah, but you don't really need to worry about that. It doesn't mean much.

    If you were used to shooting film all the time, it would be good to know since your wide angle lenses (for example) wouldn't be as wide as you were used to.
     

Share This Page