Is this lens weather-sealed? Water, dust, freeze, etc?
1520463
No, not to my knowledge. I have never seen a review or spec that states it is weatherproof. And my copy has no obvious seals or rings that would provide weatherproofing.
1520464
No it is not supposed to be weather-sealed, but I have a wrap-around case for it and was in the rain with it at Yosemite near a waterfall and it was fine. I don't do anything more or less with this lens than I would with any lens, and all lenses I consider to be delicate and you have to protect the front glass element and try to stay away from very wet environments no matter what lens I'm using. So I end up treating this lens like any other I've had in the past, simply speaking.
2199792
Thanks. Sealing it in a plastic bag before going from a cold place to a hot, humid one sounds good, I'll certainly give it a try. I was concerned about water or moisture damage when taking photos on whale watching tour boats given the strong likelyhood of rain, boat spray, humidity, etc. Does Cannon or anyone else sell anything to help prevent moiusture/water damage to dslr's?
1433334
The lens itself does not have any rubber gaskets to keep out water and dust. At its closest focusing distance, there is a gap between the first element and the mount where you can see the electronic chip so put the focus somewhere in the middle during storage so nothing gets inside the lens. I've personally used it in the snow and got it pretty wet(heh) but all in all it was ok when I got home. It should be fine for usage in moderately dusty places.
185714
I'm not sure of what your question is about ,the housing is weather proof rain drops could spot the outside of the plastic lens. May have a problem if you live where the temps get very cold with pan and focus.
1127128
Never heard of fresh or rain water damaging a polarized filter lens. Salt water might. Sorry, wish I could tell you what happened. I know it has a plastic coating on it.
1774478
It is by no means waterproof and is not PoE so it needs power from an outlet. I have used one outdoors by tucking it up under the eves so that the rain cannot get to it. The lens will get dusty over time and since it is plastic, you must be very careful while cleaning otherwise you will scratch it badly.
605493
I took this during a kayaking trip. I didn't have that problem. The casing is air tight, so there shouldn't be any moisture to cause lens fogging.
234232
I put mine in that locking box which I think protected it some from weather but I am sure it got wet without insult. Sometimes the lens was affected by water droplets but that is not a malfunction. As for cold, I think it ran out of juice faster in cold weather, a problem solved with lithium batteries albeit an expensive option.
246685
After nearly 2 years with my copy it's fine too. I do have a pretty large speck of dust in the front element but it doesn't affect anything. You have to keep in mind that dust in the front of the lens does not affect image quality so it's a non-issue. Certainly should not be a factor in the buying process as the lens has some amazing strengths.
967416
With reasonable care I think it should be fine. I used the lens on a 3 week safari in Tanzania in dusty, sometimes wet conditions and had no problems. I kept it covered in a lightweight stuff sack when not in use.
588008
I don't know for sure, but the right side one has condensation in it and it is not even a year old. I will just dry it out and reseal the lens with clear RTV.
464718
you probably have dust in the lens. This is common if you keep a camera in your pocket. you should contact sony and have them service it (it's still under warranty, and dust in the camera shouldn't happen so quickly. FWIW, my T1 took about 4 years of in the pocket before I noticed dust, and now I notice lots of dust.)
1316183
No it is not. But unless your going to use it in the rain it will be fine. I used it during the Holiday Bowl and Poinsettia Bowl in San Diego with damp conditions and had no problems what so ever. I would think you just need to be aware of your conditions and it will be a great lens.
1767054
Yes, it is weather sealed/water resistant. Like C. Finchum said, you do need to pair it with weather sealed lenses in order for this to still be true. Pentax makes a variety of weather sealed and non weather sealed lenses.
616489
This is one of the best lenses I own. Of course it is brand new. I haven't any problem yet so I can't answer about warranty handling,
1679190
No, these lights are sealed and should not allow any water to get inside of the lens.
34109
If there is condensation inside the lens there is a crack in the lens cover or a bad seal. I have not had any problems at all. The picture is clear and bright. You do have to keep the lens clean. Even works perfectly at night.