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02-08-2017, 07:20 AM - 3 Likes   #1
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modern AF lens fell into canal for three days - repaired and working again photos

This is not a lens for Pentax K at all, but I think the images are worth sharing.

There is this forum user who had a brand new Sigma 50-100 F1.8 DC lens. Well, he dropped it from a bridge about 3 meters into a canal below, where he could not get it out from, obviously.
He paid a guy from the next local scuba diving club to retrieve it and he did.
Another forum user then took it apart, cleaned it and reassembled it. Now it's working again.

Here it is right after the diver retrieved it:
Sigma 50-100/1.8 | WasserleicheWasse´rschaden am Sigma 50-10? | Flickr

And here is the repair story in images:
Wasserschaden " Sigma 50-100/1.8 | Flickr

02-08-2017, 07:48 AM   #2
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Would love to know how long it took to repair it.
02-08-2017, 08:56 AM   #3
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Almost makes lenses seem cheap when you see what goes into them
02-08-2017, 09:40 AM - 1 Like   #4
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i have an fa43 that went through the washing machine and is working just fine now. it also sat for 5 or 6 years after the washing machine deep cleaning.

02-08-2017, 10:48 AM   #5
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QuoteOriginally posted by beholder3 Quote
Another forum user then took it apart, cleaned it and reassembled it. Now it's working again.
Very interesting story. Thanks for posting.

@dcshooter, thanks for your comments, which add to the understanding of the lens and its construction.

I guess the moral of the story is: All Canals should be Drained.
02-08-2017, 07:19 PM   #6
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QuoteOriginally posted by wibbly Quote
i have an fa43 that went through the washing machine and is working just fine now. it also sat for 5 or 6 years after the washing machine deep cleaning.
Wibbly, that is not how to properly CLA lenses!

Kind of surprised you didn't dent the washing machine drum with that hunk of steel of a lens.
02-08-2017, 07:37 PM   #7
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QuoteOriginally posted by wibbly Quote
i have an fa43 that went through the washing machine and is working just fine now. it also sat for 5 or 6 years after the washing machine deep cleaning.
You putting it in the tumble dryer for three hours obviously did the trick!

02-08-2017, 08:07 PM - 1 Like   #8
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Fortunately I wasn't the one who washed it. It was my sister in law (the lens was previously my brother's).

Dcshooter sorted it out for me and said it was remarkably clean inside... Go figure.

Just needed the soap cleaned off the internal elements
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