# diaphragm

> optics and photography

**Wikidata**: [Q261732](https://www.wikidata.org/wiki/Q261732)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Diaphragm_(optics))  
**Source**: https://4ort.xyz/entity/diaphragm-q261732-2


## References

1. [Source](https://lingualibre.fr/wiki/Q213104)
2. Nuovo soggettario