Prime 2/3-lens setup

I have an X-E2 and had the 18mm plus the 27mm for a while. My plan was to leave the house with one lens on the X-E2, usually the 18mm, and the other lens in my pants pocket, usually the 27mm, plus a spare battery and microfiber cloth in the other pants pocket. Perfect lightweight kit; no bag to lug around. But I found that I rarely switched between the two lenses and when I did use the 27mm, it just didn't seem to work. For a while I was using just four manual focus lenses, Bower 8mm f2.8, Rokinon 12mm f2.0, Rokinon 21mm f1.4, and Rokinon 50mm f1.2. The 18mm and 27mm sat on the shelf, so I sold them. I've actually gone through eleven different primes with my X-E2, trying to figure out that perfect combination for me.

In my case, I discovered that I tend to use just one lens 95% of the time and also, since going digital, I rarely use anything longer than 23mm. I also discovered that after more than 55 years of shooting film, I do better with manual focus lenses. Right now I'm using the X-E2 with the 14mm f2.8 and 23mm f1.4. Both have the AF/MF clutch plus DOF/Distance scales so, I can use either as a traditional manual lens or quickly switch to AF; the best of both worlds. And as with my other combos, the 23mm gets most of the use.

If you're not happy with the 27mm, get rid of it. Also, don't forget that a 50mm lens will give you a 75mm FOV while still performing as a 50mm lens otherwise. You have the 50mm f2 if you want AF or the Samyang/Rokinon 50mm f1.2 is a fantastic lens if you're ok with MF and if you are ok with MF, there are all those older manual 50mm lenses out there from when the nifty fifty was the standard kit lens.