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Rear element Smudge

  • 30-03-2011 8:23pm
    #1
    pbuckland05
    Closed Accounts Posts: 79 ✭✭


    I have a smudge on my rear element of my lens I used breath with a microfiber cloth this only spread the oil residue I then decides to use a Lens pen which seemed to do a good job is this the best way to deal with this issue and will a small smudge affect image quality


Comments

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


    A lens pen will be fine for small jobs but arent 100% effective especially on drops of dried it liquid plus you have to be careful that there is no grit on the lens element or you could scratch it with the force required for the lens pen.

    Best solution would be something like eclipse (or 99% isopropyl alcohol would work) and pecpads (or othe lint free non abrasive pads/wipes).

    Those circular cotton pads that are common in supermarkets will do an alright job with isopropyl or cleaning fluid if you dont want to spend money on proper pads but they will leave strands on the surface and will catch on any sharp surfaces around the lens which can be annoying.

    Have a look here and here for the eclipse and pec pads.

    As for the other part of your post. depending on how thick/big the smudge is it will effect image quality.
    It might increase flare and also if it was bad enough would make the image soft or have a glow around bright objects.

    hope this helps


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