[jbornhorst]

oh these are super interesting - i've never seen magnets in the len's before. thanks for sharing.

[walterbell]

They are mostly sold via opticians who do the changes locally, but there's also an online option, 150 for clip + lens mod + 2-way shipment, additional clips for 75, https://www.buychemistrie.com/product-page/chemistrie-comput...