
Looks like they have been associated with high humidity or condensation. A white film came off on one lens, but I wasn't thrilled to have to clean the new lens so I could use it. As many people know, cleaning such lenses starts to scratch them, no matter how careful you are.

Hakko T18-BR02 Soldering Tip - T18 Series for Hakko FX-888/FX-8801 - Conical Shape - Bent 30 Degrees - R0.2 mm x 10.5 mm
12 Review

309LFC-O X .035 X 1LB Spool Gasless Stainless Steel Flux Core Welding Wire by Blue Demon
12 Review

Inverter welding machine CET CET MMA 200A, MMA
23 Review

Continental Conti4x4Contact 265/60 R18 110H summer
23 Review