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11-03-2011, 02:12 PM   #1
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Clean Lens

As you can see that there is a spot (At 5 O'Clock)on the inside of my lens and I was wondering If I could remove the 4 screws and clean that stuff off my lens without destroying the lens.

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11-03-2011, 02:30 PM   #2
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It is not the four screws it seems. As with many lens and yours as well, the retainer must be spun off via a spanner...

If you are sure the spot is in the lens group and not on the outside, then you need to remove the outer ring to get under the group. Circled is the spanner slots. Some folks use improvised spanners... google "diy lens spanners" to see some examples or get an actual lens spanner.

You could also remove the dark shroud ring that is held by the two screws to try and get a finger hold on the retainer ring and spin it of without, however, it may be too tight to do by fingers alone.

Last edited by MysteryOnion; 11-03-2011 at 02:45 PM.
11-04-2011, 08:13 AM   #3
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One of these?
Amazon.com: Spanner Wrench, Wide (Imported): Home Improvement
11-04-2011, 11:06 AM   #4
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Yes. It will depend on the slot thickness... about 1-1.5mm or file it down if not available.

11-04-2011, 11:49 AM   #5
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unless is shows up in th eimages i wouldleave it alone.

just my $0.02
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