First of all, tho there may be lenses advertised as a waterproof lens, I sure wouldn’t trust it unless there was some proof. Lenses are weather sealed. This mean they have some level of protection against water, humidity and dust. Not that they could survive a swim in the river.

Note that not all lenses have the same level of protection. Those in bold are said to have a basic level of protection while the others should be able to resist hostile environment, the long telephoto lenses being the best.

Note: If you install a weather sealed lens on a body that is not weather sealed, the lens mount section will be vulnerable.

Note: Thanks to Marlon Perez for spotting some errors in the list

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