![Permalink to Fujinon XF400mm f/4 and Fujinon XF550mm f/5.6 Patents Found 400mm f/4](https://fujiaddict.com/wp-content/uploads/2022/03/400mmf4pat1-120x120.jpg)
It’s been a while since Fujifilm launched its excellent, but expensive Fujinon XF200mm f/2 and since then photographers have been asking for more telephoto goodness. Well, it looks like some patents have dropped for a potential Fujinon XF400mm f/4 and Fujinon XF550mm f/5.6 with OIS. If Fujifilm decides to produce these lenses let’s hope that […]