- WR will not save your lens if the weather conditions are really bad. If they are not, even with some rain and/or dust, WR will not make a difference.
How come?
Isn't the weather sealing supposed to keep water and dust out? (or at least part of it?)
W(eather) R(esistance) is not weather sealing.
Define the difference between them. Because neither means that the camera is weather proof.
You mentioned weather sealing. What Fuji specifies is WR, which is different. They mention in their manuals what they mean by WR. Now you bring another one, weather proof... Fuji does not mention that either.
What do you define as "really bad conditions"?
Heavy rain, dust storms in the desert. I have been in both situations, and even a pro level EOS1V had a shutter button failure.
Because I have taken my X-Pro2 and my 35mm f/2 as well as my 18-135mm lenses in pouring rain and snowstorms and they both always came out good, even though they had been drenched.
You may get lucky doing it once or twice but do it regularly and they will fail.
The 35mm I use has been through it for the last year and a half.
The X-Pro2 for about 1 year.
Both have been drenched dozens of times.
That's not luck.
We do not know, might be luck. Somewhere there might be an Xpro2 or 35mm lens that has failed perhaps under less severe conditions.
Yes, that's called statistics.
And statistics also say that an X-Pro2 + XF 35mm f/2 surviving being drenched once or twice can be the result of luck. However being drenched dozens of times?
The part of luck or part-to-part variance in its construction is starting to wear thin. Also I'm not the only person to carry Fujifilm camera gear into rainy conditions.
I remember a video from Roman Fox that explained he did the same thing on his X-T3, then his two X-T4s for more than a year and that didn't result in any problem for the cameras.
If those are not "really bad condition" I don't know what qualifies.
I wish we had some sort of IP rating to those lenses and camera bodies so that we could have a better estimate of what they can endure.
As per the instruction manuals, WR will grant you some protection in light rain/drizzle. It does not qualify to be granted any IP rating.
No, that's not it.
The manufacturer doesn't bother to put it through IP testing, because IP testing is expensive. That's about it.
And because the rating would be really low.
No, it would simply be adequate.
Or do you expect a rating that would allow you to submerge the camera down to 2m depth for 30 minutes?
Nobody expects that from a camera.
That is the IP rating of some flagship phones.
Well, I work in an IP testing lab, so bringing up the IPX7 and IPX8 rating of phones is irrelevant.
OM System does rate their camera IP53, Leica rate their cameras IP54 (at least the ones that are sealed). IPx3 means it only accept splashes in all direction except from beneath. IPx4 means the same thing but in all directions. This is not a serious IP rating, yet it's enough.
Nobody asked for cameras to be IP67 or IP68.
But since I'm a camera nerd, and I have a full IP testing lab at my disposal, and I can stay after hours, I can tell you : My Olympus E-M1 mark II is rated for IPX2, but it survived testing for IP55.
I put my X-H1 through the same thing and it shrugged it off no problem.
I didn't test IPx6 and IPx7 because I already know they wouldn't survive it. But point being the X-H1 doesn't have any IP rating associated to it, yet has the capacity to have a pretty serious rating attached to it. The only reason it doesn't is because it saves Fujifilm money. Same for every other brand that doesn't use IP ratings.