It's important to note that while "lens" is the common Tagalog word for lentils, it can also refer to a lens for a camera or other optical instruments.
To be clearer, you could say:
* "Mga lentil" for "lentils" (plural)
* "Buto ng lentil" for "lentil seeds"
* "Sopas na lentil" for "lentil soup"