Poor sealing on batis lenses?

Started 6 months ago | Discussions thread
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chrisrabe Senior Member • Posts: 1,614
Poor sealing on batis lenses?

After my two weeks in Costa Rica, I am a little concerned about the sealing on the batis lenses.

You know what it's like when you are in a hot humid environment and move between air conditioning and the outside - things fog up.

Expected, and little I could do to mitigate it at 2nd hotel.

But when using either batis 135mm or 18mm, both lenses fogged up on the INTERNAL rear element!

Meaning the camera lens combination is not that well sealed.

This with both A7rii and A7riii.

Sony lenses 100-400mm, 90mm, 24-105mm did not exhibit this. They only fogged up on the front element.

This is bothering me immensely. One of the the selling points of these lenses for me was the so called weather resistance.

Any thoughts?

 chrisrabe's gear list:chrisrabe's gear list
Sony FE 55mm F1.8 Sony FE 90mm F2.8 macro Sony a7R II Sony a7R III Sony FE 35mm F2.8 +5 more
Sony a7R
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