topic Re: High humidity environment and care. in EOS DSLR & Mirrorless Cameras

High humidity environment and care for cameras and lenses

Cyrilbrd — Tue, 23 Sep 2025 13:11:38 GMT

Good day,

Cameras and lenses today may or may not be weather-sealed, some are even "Built to withstand the elements, and can resist rain, dust, and extreme temperatures".
My concern is humidity, when the ambient humidity is reaching 90% to 95% with an average of about over 77% during the year, what extra care do you take to minimize the risks of fungus and mold.
Long term care so far is dry cabinet such as Eirmai MRD-45T, and Wisedry reusable desiccant packs.
Any first hand experience and advise?

Re: High humidity environment and care.

shadowsports — Mon, 22 Sep 2025 00:08:41 GMT

Greetings,

I live a mile from the ocean in NorCal. Sleepy little city with plenty of fog. I have a dry cabinet. Mold and fungus are opportunistic. If you have good airflow it shouldn't be a problem...the other issue is temperature changes. Going from cold to warm environments. A dry bag with silica packs can help with this until the temp equalizes.

I've had my 6DmkII and R5 C is some very challenging weather. I try to be as careful as possible. Beyond that, I highly recommend CarePaks.

Re: High humidity environment and care.

Cyrilbrd — Mon, 22 Sep 2025 00:18:48 GMT

Thanks for the feedback,
Well it is hot and humid here all the time, especially during monsoon where we reach above and beyond 90 °F and 90% humidity like today and yesterday since mid of July. The coolest we get is about 77 °F.
So an airflow that is 90% humid is the issue.
Whenever at sea, or on land does not really matter here. At least when the unit was in an underwater casing, all we had to be careful about was direct sunlight.
Just being curious actually about what other is similar setup are doing.

10 meters from the sea.