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Help! Mold in Sigma 50-500 OS

Started Dec 16, 2019 | Questions thread
Sailor Blue
Sailor Blue Forum Pro • Posts: 15,536
Re: Help! Mold in Sigma 50-500 OS

A little mold won't degrade the lens much. It may be best to simply leave for now.

You can largely stop the mold from growing by keeping your lenses, an cameras, etc. in a humidity controlled cabinet.

I use one since I live in very humid Thailand and even though I got a fairly large one I quickly filled it to overflow. Be sure to get one larger than you think you will need, you will need the larger size.

eBay - Touch Screen Digital Dehumidify Dry Cabinet Box for Lens Camera Equipment Storage

Lenses have different thickness rings and shims to adjust the position of each lens element to correct for variations in focal length caused by variations in manufacturing.

If you don't have the proper training you are likely to make your lens inoperable by trying to open it up. Removing the mold using the wrong technique and solutions can simply make things worse.

Having a lens serviced to remove mold can be expensive. Buying a replacement lens can be less expensive.

Buy the dry cabinet now and then save up money for a replacement lens.

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Living and loving it in Pattaya, Thailand. Canon 5DS R & 7D - See the gear list for the rest.

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