Yongnuo
↑ “Company profile”. Yongnuo. 2019年2月13日閲覧。
↑ Westlake, Andy (2018年7月25日). “Cheap Creative Lenses under £200”. Amateur Photographer. https://www.amateurphotographer.co.uk/review/lenses/cheap-creative-lenses-under-200-pounds-120301 2019年2月14日閲覧。
↑ Moyen, Motek (2019年2月19日). “Why Nikon And Canon Should Lower Prices Of Their Lenses And Camera Accessories”. Seeking Alpha. https://seekingalpha.com/article/4242091-nikon-canon-lower-prices-lenses-camera-accessories 2019年2月26日閲覧。
↑ Chacksfield, Marc (2018年11月5日). “The ultimate camera phone? Yongnuo's mirrorless camera runs Android and uses Canon lenses”. Digital Camera World.