Can I clean my focus lens with IPA (isopropyl alcohol) or would this be

Can I clean my focus lens with IPA (isopropyl alcohol) or would this be too aggressive?

That’s what I have been using every day for 2 years

Ditto to @Phillip_Conroy 's comment. Just do not rub too hard, you can actually rub the coating off if you are too aggresive.

I also use isopropyl. Get a cotton swap wet and gently rub then wipe with micro fiber.

Thanks. Will give it a try

And always have a spare,they do wear out,or shatter if dropped

Or get crushed in crappy lens holders lol.

This question comes up every month.
Here’s a helpful link from a manufacturer of high end machines:

http://support.epiloglaser.com/article/8205/11940/cleaning-epilog-optics

They recommend Everclear and have a comment about rubbing alcohol and acetone substitutes.

Thanks. It has worked perfect for me