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Lens Scratch: Photoshop Filter?

  • 09-07-2010 11:53am
    #1
    jArgHA
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭


    Whilst on holidays recently my Canon G11 developed a tiny scratch on the lens, it is very narrow and just over 1mm long :( My guess is it must have happened after a grain of sand landed on lens and subsequently scratched the glass either via a wipe of the lens or front shutter closing..

    Anyhow it is an absolute pain as far as I know it is not possible to replace the lens in this type of camera, and it means that when taking photos which have a brightish / uniform colour along top of photo there is now a dark vertical patch which appears in the photo (I have posted an example below).

    I was wondering if anyone could recommend an easy way to process images which exhibit this dark patch (so that the dark patch no longer shows), in particular for photos such as he below where the dark patch falls over a uniform colour area like background sky. I'm sure it should be a relatively easy task in Photoshop via a filter or otherwise. Can anyone recommend a method that is pretty straightforward, ideally something that could easily be run over a batch of images...
    Tagged:


Comments

  • #2
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 50,877 CMod ✭✭✭✭magicbastarder


    jArgHA wrote: »
    Whilst on holidays recently my Canon G11 developed a tiny scratch on the lens, it is very narrow and just over 1mm long :( My guess is it must have happened after a grain of sand landed on lens and subsequently scratched the glass either via a wipe of the lens or front shutter closing..
    you're not the first person i've heard about this happening to - it happened a colleague. sounds like there's too little room between the front element and the lens cover/shutter.


  • #3
    jArgHA
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭jArgHA


    Yeah you could be right, I rarely if ever wipe the lens, so it could well have been the front shutter closing which caused the scratch, it is vertical also which follows the line which those front shutters close at..

    Any ideas on image processing?


  • #4
    BrokenArrows
    Registered Users, Registered Users 2 Posts: 7,501 ✭✭✭BrokenArrows


    the sky is easy as its a very simple colour to fix. two seconds with the patch tool in photoshop.

    Untitled-2-1.jpg


  • #5
    5uspect
    Moderators, Arts Moderators Posts: 10,520 Mod ✭✭✭✭5uspect


    If you're shooting RAW there's a dust removal tool you can set as part of your camera profile. It's basically the patch tool implemented in CameraRAW.


  • #6
    jArgHA
    Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭jArgHA


    Just saw last 2 responses now, thanks for the input. I will give the patch tool a go in Photoshop, hopefully it can be run in some kind of batch mode to process a large number of images together.

    That's a good tip on shooting in RAW mode also I will check that out. Thanks again


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