Despite kicking around for over a decade Chinese manufacturer, Yongnuo, is a bit of a dark horse in the photo industry. After starting out as an obscure eBay-based photographic lighting brand, Yongnuo is now a leading trigger manufacturer and has its sights set on the third-party lens market. In seven years, it has built up a solid line up of affordable ‘copycat’ prime lenses for Canon EF and now RF, Nikon F, Sony E, and M43 cameras.