I have a Sigma 50mm EX lens and am looking at an 18-35mm ART lens. I also put high quality protective clear filters on all my lenses. They will be affixed to a Canon 6D.

I am planning a trip to Colorado, and enjoy shooting on days with poor weather. I know that the Canon L lenses are built to be pretty well sealed, but I was wondering how water/dust resistant the Sigma lenses are when fitted with clear filters?

1 Answer 1


There is only one Sigma Art lens with is weatheproof and that is the Sigma A 12-24mm F/4 DG HSM. Many of the Sport series are weatherproof though. A clear filter will not help as there is no sealing on the mount.

The one you are looking for is probably the 24-35mm F/2 DG HSM as it will work on your Canon 6D. The Art 18-35mm you mention only works for cameras with APS-C sensors.

  • True, thank you very much for saving me from that oversight. I suppose my focus will shift back to the L lenses.
    – Golightly
    Jan 5, 2017 at 15:20

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.