PiNoir IR camera

I recently received a PiNoir 8MP camera from Core. When I opened the box, I noticed two kinds of stickers: one tiny sticker over the lens and a larger bluish piece of plastic. I have saved them in a safe place.
What is the purpose of each of these stickers.
Thank you
Anthony of Sydney

Hi Anthony,

There will be a protective sticker on the lens (just for transit purposes) and a blue filter which can be used for NDVI imaging. Here is the write-up by Raspberry Pi Foundation about that blue filter.

All the best with your projects!