Nippon Kogaku 5cm f2 hood (for rangefinder) brand_Billingham this is an inexpensive way

this is an inexpensive way to get started- or to get a lot of extra magnification out of your current macro lens

used on many older Garmin units

but this model has a built-in secondary panel and should perform well in any sort of lighting that your film can realistically handle

The Konica Hexanon AR 57mm f1

so you should consider it weather-resistant rather than waterproof

Nippon Kogaku 5cm f2 hood (for rangefinder) brand_Billingham this is an inexpensive wayThis is an original Nippon Kogaku lens hood for the Nikon S mount rangefinder 5cm f2 Nikkor lens. In very good condition, with some paint and finish wear, no dents, good spring action. An earlier hood, though not the earliest: it's marked "U. S. PAT. J. PAT. PEND."