Quantity   Component name
1 × A commercial Diffraction grating Spectroscope From: A commercial Diffraction grating Spectroscope https://www.patonhawksley.com/product-page/benchtop-spectroscope
1 × A Raspberry Pi Camera (with an M12 Thread) https://thepihut.com/products/raspberry-pi-camera-adjustable-focus-5mp
1 × A CCTV Lens with Zoom (M12 Thread) (Search eBay for F1.6 zoom lens)