Sigma 50mm F1.4 Art lens Canon mount - Water condensation stain

Started 2 months ago | Discussions thread
OP Bitse Junior Member • Posts: 32
Re: Sigma 50mm F1.4 Art lens Canon mount - Water condensation stain

LASR wrote:

Bitse wrote:

Hi,

Please help me to find the solution for my Sigma Art lens

It has been kept outside overnight and formed the mist inside. Once water is dryed it formed stains inside. I'm not seeing anything from viewfinder but it has those marks. Worried whether it may cause fungus or something.

It can but if you keep it in a low RH environment they don't have conditions to grow. The water should have already evaporated and the dry residue are probably salts, dust, spores, etc.

If it's cold outside, leave the lens in the camera bag for a while, to increase temperature slowly and avoid condensation.

Thank you. I will keep it for a while and see the difference.

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