The Perfect Lens Hood for Nikon Z 40mm f/2 Lens
Sensai Collapsible Rubber Lens Hood II (standard, 52mm) is perfect for Nikon Z 40mm f/2 Lens.
Small, light, versatile, and super affordable at $7 bucks. Make sure you get the version with 52mm front thread so you can use a 52mm circular polarizing filter if needed.
Nikon 40mm f/2 Lens: https://www.amazon.com/dp/B09G57BXZ4/
Sensai 52mm Hood: https://www.amazon.com/dp/B014EH1FP8
Nikon 52mm NC (Neutral Color ) filter: https://www.amazon.com/dp/B00009R96C
Nikon 52mm CPL (Circular Polarizer): https://www.amazon.com/dp/B00017LUNI