XF 90mm and Dust

I had to return my first Fuji XF 90mm lens because it came with dust inside straight out of the box. The replacement was clean initially, but after just three months of use, I’ve noticed around 20 specks of dust inside. While I understand that this doesn’t impact image quality, it’s frustrating for a lens that’s labeled as weather resistant (WR). I’ve used Canon L lenses extensively in all conditions for over 10 years without any issues like this, and even my other WR XF lenses (35mm and 16mm) are spotless.

I’m planning to visit the Fuji Service Center tomorrow to ask for a replacement and see how they handle this. My suspicion is that dust is introduced during manufacturing and spreads over time with regular use. For a lens at this price and with these specifications, it’s disappointing to encounter such a flaw. Let’s see what Fuji has to say!

Edit: a friend of mine is having similar problems with his Panasonic Lenses. Apprently, it could be dried glue that starts peeling off from within. So indeed it’s an issue with the manufacturing process, not dust getting in.

Edit: back from the Fuji Service Center in Tokyo Midtown. They took the lens back, it should be fixed within two weeks. Also got the sensor of my X-T2 cleaned. Both for free.