← Back to context Comment by varjag 8 hours ago Usually it's not the fabric but trapped dust that scratches the coating when you wipe. 2 comments varjag Reply eudamoniac 5 hours ago Dust is harder than hard plastic? dpark 3 hours ago A large amount of dust is essentially powdered rock, which absolutely is harder than the plastic you would generally find in optical lenses.
eudamoniac 5 hours ago Dust is harder than hard plastic? dpark 3 hours ago A large amount of dust is essentially powdered rock, which absolutely is harder than the plastic you would generally find in optical lenses.
dpark 3 hours ago A large amount of dust is essentially powdered rock, which absolutely is harder than the plastic you would generally find in optical lenses.
Dust is harder than hard plastic?
A large amount of dust is essentially powdered rock, which absolutely is harder than the plastic you would generally find in optical lenses.