Fujinon Lens scratch repair

Discussion in 'Professional Video Production' started by andy T, Apr 26, 2005.

  1. andy T

    andy T Guest

    Advice please.. in 25 years in the business i've never done this, but I
    had a camera out on hire last week and it came back with a dirty great
    scratch on the front element of the lens.
    Ok by bloody great I mean about 1/4 of an inch long, situated about half
    way from the centre to the edge of the lens, but if you look with a
    lupe its very deep and nasty..
    Can it be repaired..??? reground..??? new front element..??? or is the
    lens scrap..???
    its from a DSR 300 and it's only a 14x fujinon so it's probably only
    worth a few hundred pounds... but I need some advice before dealing with
    the guy who hired it...
    many thanks
    Andy
     
    andy T, Apr 26, 2005
    #1
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  2. It's history.
    And that sucks.
    You can't polish it down without winding up with a soft spot in the image.
    It will probably look good on the outside, but the light passing through it
    will be diffracted because you are not just polishing down a 1/4" line, you
    are polishing a larger area to match the scratch.
    Having it ground is probably not possible. I'm pretty sure that Fujinon owns
    the proprietary grind math specs for the front element surface. So who is
    going to grind down the element without specs?
    you can probably get the element recoated......maybe.
    But someone is going to have to re-align the lens on assembly.
    For that you need a lens projector with an alignment chart.
    It's probably cheaper to buy a use one on ebay.

    But first, contact Fujinon and ask. I sure it's not an uncommon question.

    It's probably an insurance issue. His insurance!

    Bill F.
     
    Bill Farnsworth, Apr 26, 2005
    #2
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  3. andy T

    Bill Fright Guest

    Unfortunatly I think it's a throw away. Send it to his insurance company
    or save it for legal attempts of recovery.

    The questions you'd ask yourself is... Did you send it out with a clear
    filter on it for protection? Did you have a proper case and lens
    cover/shade included with the rental kit?

    I lose about $20,000 US each year by not renting out my primary shooting
    gear. I make good money on the secondary stuff though.

    Sorry about your loss.

    bill
     
    Bill Fright, Apr 26, 2005
    #3
  4. andy T

    andy T Guest

    Thanks for the help Guys.. the advice is pretty much what i expected
    though......!
    Fortunately as the man says.. it's not my primary gear.. I moved up to
    500s last year (which I don't lend out) but I do make a bit renting out
    the old stuff...
    It was fitted with a lens hood and cap, no filter though... there is no
    internal thread on the lens barrel for a permanent filter..
    Fortunately there is no arguement about the scratch.. I checked the
    camera out with the client before the hire, and confirmed that the glass
    was clear of scratches or marks.
    Of course he dosn't understand how it happened, or when, as he never
    left the lens cap off when he wasn't shooting.....!!!!
    thanks again
    regards
    Andy
     
    andy T, Apr 27, 2005
    #4
  5. andy T

    Steve Guidry Guest

    Have you looked at the camera output ? Is it very noticeable on the picture
    ?
     
    Steve Guidry, Apr 27, 2005
    #5
  6. andy T

    Toby Guest

    If you need to keep it you can fill the scratch with matte black paint. This
    will stop light from refracting from the edges of the glass at the scratch.
    Forget about regrinding--if the scratch is too deep for a simple repolish it
    won't work. Almost any work that would fix it--like replacing the front
    element--even a repolish and recoating--would cost more than the worth of
    the lens. Basically the paint fix should work--especially since it isn't a
    wide lens. You should see no difference in the performance, even against the
    light. However since it's not something that you did to your own equipment
    you should get it returned to its prior condition, which most probably means
    replacing the lens.

    FYI I had a similar scratch in a Fujinon 8x15 put there by a group of
    Chimpira (mini-Yakuza) thugs who attacked me in Shinjuku one night because
    they thought I was filming their drug dealing. I used the lens for several
    years afterwards with no problem. However as I say, you have the right to
    insist that the equipment be returned to its prior condition.

    Toby
     
    Toby, Apr 28, 2005
    #6
  7. andy T

    C.J.Patten Guest

    That's a pretty darn cool story Toby! Got any footage of the mini Yakuza?!

    LOL!

    C.
     
    C.J.Patten, Apr 28, 2005
    #7
  8. andy T

    Bob Ford Guest

    I'm not familiar with this particular but I found some pictures of it
    on-line and it looks very much like a JVC DV5000.
    If so, I can't imagine a pro camera that does not have threads at the
    front element to which you can screw in a filter.
    Am I missing something here?

    Even my old Panasonic AG450's can be, and are, fitted with a screw in
    filter.
     
    Bob Ford, Apr 28, 2005
    #8
  9. andy T

    Toby Guest

    Just a hand in front of the lens...

    At first I thought the guy who approached me was a stupid 16 yr. old punk
    who just wanted to be in my face. We don't call the camera the "asshole
    magnet" for nothing...I tried to explain that I was just shooting the train
    station for a news piece (this was during the Tokyo subway poison gas attack
    in '95--a cyanide bomb had been discovered just in time--could have killed
    10,000 people had it been successful.) He looked at me totally
    uncomprehendingly and after asking the same question a half dozen times--and
    getting the same answer a half dozen times--he finally just went away.

    Anyway about three minutes after the guy leaves I'm being pummeled by him
    and two more weird looking kids. Unfortunately I was alone, as my soundman
    was minding the car since there is no parking in that area. They were
    shouting at me and hitting the gear and pushing me around, and I figured the
    only thing I could do was to move toward one of the five or six hundred
    policemen who were out in force around the station. However on the way
    across the street toward the police line I let my anger at these little
    yapping idiots get the better of me and I landed a kick in the solar plexus
    of the leader which put him flat on his ass.

    At that point I realized that hadn't been a really swift move, since it was
    me and a Sony BVW-300 on sticks extended against three now thoroughly
    enraged punks. If I put the camera down I figured that would be the end of
    it, so I just kept walking while these guys landed punches on me and ripped
    my shirt off my back. Luckily the nearest policeman was not too far and I
    got there with no more than a slightly bruised cheek and a bit of hair
    ripped out. I showed the cop my foreign press id and asked him to wait while
    I retrieved my Japanese soundman to explain the situation.

    These little guys had balls, though. When I returned they were insisiting I
    be arrested for assaulting them. They were, according to them, minding their
    own business when I came and stated taking their pictures, and when they
    asked me nicely not to I kicked one....The policeman asked if I wanted to
    file a complaint, to which I said that I only wanted to get my shot and get
    back for the edit. He told the punks to go back to their business--them
    still shouting about how that had been assaulted and they wanted me
    arrested.

    He told me that they were chimpira--young yakuza wannabes who deal drugs for
    the big guys and are their runners. He said that I was actually lucky,
    because they often carry knives and worse, and are hotheads who often don't
    have the good sense of the real yakuza, who tend to avoid mixing it up with
    normal citizens on the street.

    I asked him if he would come across the street with me for five minutes so
    that I could get my shot unmolested, to which he answered, "Ah, it would be
    better if you waited awhile, or went somewhere else--we don't want to make
    them mad...."

    Tokyo's finest :)~\

    Toby
     
    Toby, Apr 30, 2005
    #9
  10. andy T

    C.J.Patten Guest

    HOLY COW. You were fortunate. And you showed a lot more restraint than I
    think I would have.
    Cool story though - mind if I make a short film out of it??? ;)

    C.j
     
    C.J.Patten, Apr 30, 2005
    #10
  11. andy T

    Toby Guest

    Be my guest ;-)

    Toby
     
    Toby, May 3, 2005
    #11
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