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02-24-2012, 04:05 AM   #1
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Sigma 15-30mm EX - tool?

Hi!

I found a mint used copy of the Sigma 15-30mm EX lens, and it just arrived.
A nice chunky piece of glass.

But there was a funny little metal piece inside, 23x25mm and a 3mm hole in one corner. See pic attached.
What is it? Does it have something to do with gel filters or what?

Seb.

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02-24-2012, 06:09 AM   #2
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I memory serves me...that device is your template for cutting a out a filter sheet. The filter is installed in the rear of the lens, as the large front element does not allow standard screw-in filters.

Ii is a great lens!
02-24-2012, 10:46 AM   #3
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Thanks!

It explains why it was sticky! Not that I plan to use gel filters. And I could use a 82mm screw thread filter on the round hood.
But I don't really care for filters anyway.

I thought that I was LBA free but alas when this showed up...

Seb
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