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scratches on lens

  • 07-10-2010 4:29am
    #1
    viewfinder
    Closed Accounts Posts: 3 ✭


    :)Hi Im new to boards. my hobby is photography.This summer while on hols scratched front of canon lens 17-85mm off rocks. Dos anyone know where in ireland I could get the front element replaced or is it expensive.
    cheers


Comments

  • #2
    zerohamster
    Registered Users, Registered Users 2 Posts: 1,792 ✭✭✭zerohamster


    Hey,
    Welcome to boards!
    I do repairs if you want to PM me for details :)
    the repair itself isnt too expensive but the elements price would probably be around €100 but i would have to check :)


  • #3
    AnCatDubh
    Registered Users, Registered Users 2 Posts: 6,393 ✭✭✭AnCatDubh


    How bad is the scratch? Does it interfere with the resulting image?

    Many 'soft' scratching won't be noticeable at all on resulting images - i'm not sure the exact science as to why, but I suspect it is because you are never focusing on 3cm from the sensor. Its the same with other elements, I've seen branches of trees 'disappear' in the resulting image when you focus in the distance and at a particular focal length.

    Anyhow, it may annoy the heck out of you knowing it is scratched but maybe you'd get away without needing to do the repair?

    Cheers.


  • #4
    CabanSail
    Moderators, Category Moderators, Arts Moderators, Entertainment Moderators Posts: 9,047 CMod ✭✭✭✭CabanSail


    ^^What he said^^

    The only time it may be evident is with increased flare when shooting into strong light.

    I did recently notice dirt in the front element of a lens being seen on an image. This was with an 8mm Fisheye and with it stopped right down to f22, so the DOF was something awesome. The blemishes were still not that noticeable and easily cloned out.


  • #5
    Diabhal_Glas
    Registered Users, Registered Users 2 Posts: 468 ✭✭Diabhal_Glas


    Saw this a while ago, have a look at the shots taken with this badly smashed lens

    http://www.lensrentals.com/news/2008.10.30/front-element-scratches


  • #6
    zerohamster
    Registered Users, Registered Users 2 Posts: 1,792 ✭✭✭zerohamster


    Diabhal_Glas wrote: »
    Saw this a while ago, have a look at the shots taken with this badly smashed lens

    http://www.lensrentals.com/news/2008.10.30/front-element-scratches

    Wow that is pretty impressive, I would never have thought it could be that badly damaged and perform so well! :O


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  • #7
    hopelessOne
    Registered Users Posts: 90 ✭✭hopelessOne


    Here's another article showing effect of lens scratches, dirt and entirely smashed elements on the resulting photos: http://kurtmunger.com/dirty_lens_articleid35.html

    You'll be surprised how little effect it has


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