Originally posted by Laurentiu Cristofor And I already told you that I scratched the coating of my Tamron lens using a microfiber cloth and a speck of dust caught in it - no hammer was needed for that.
And it's not only scratching/breaking that are the risks - kids paint, brandish spoons with food. I'd rather have to deal with cleaning a filter than with cleaning the front element of a lens.
So a hammer will do no damage, but the shards will? Either the front element can take any punishment, or the hammer example is irrelevant. Looks like some things can damage the front lens after all.
Strange that your lens get a scratch by just cleaning... while mean have been rolling through the dirt almost literary...
Yes, if you understand pressure you know why a shard can damage the lens more then a hammer.
Filter glass is hard and the surface is small so it's easy to make a scratch without much force.
You can cut yourself on paper right but it's very hard to cut yourself on cardboard.