I almost thought there wasn’t a two-handed staff lens since I couldn’t find with search feature and there was no “Focusing Lens of Staffs”.
After pulling up a list of item types and comparing them to the lenses I realized the only one out of place was the staves lens which did have a staff looking icon.
Now I really see this as a text error as everywhere else in the game, including prophecies, it’s Two-Handed Staff.
I’m sure they can add staves as an item type in the future but please just fix this typo. It’s very confusing.