Turn Your Smartphone Into a Digital Microscope

I found this on the internet. Now all I need is the lens. wc

Turn Your Smartphone Into a Digital Microscope!
https://www.youtube.com/watch?t=3&v=KpMTkr_aiYU

How To Make Simple Smartphone Microscope ( 40x - 170x) & (DIY)
https://www.youtube.com/watch?v=Uv8euo9PxyQ