Owain Shaw wrote in post #18557556
Looks like someone is having fun with the wide angle.
(First World) Question for recommendations ... I'm not 100% sure because I feel like I've never given the 27mm a fair chance, but for some reason I don't like this focal length on my X-Pro whereas I really do like 40mm on my Canon 5D. The other week I realised that the idea of buying more kit for my Canon just didn't appeal because it's always bigger and heavier so I'm trying to love my Fuji more. Next month I'll be going to Poland for a few days which I'm really excited about but I'm not sure whether to pick up a 23mm f/2 before I go. I have a Canon 50mm f/1.4 I rarely use and would be plenty willing to let go of to partially fund it.
My first response is, why not?
Lenses are, ultimately, a personal choice and we have little to go on from your question. The fact that you like the 40 and don't like the equivelent lens on the Fuji makes it more challenging because that implies it isn't about angle of view.
For travel, in my experience, wider is generally more useful. I like the 35/1.4 because I can use it in low light and for headshots and it is surprisingly light and compact but find I get more use from a wider lens. I prefer the 18/2 or the 16/1.4. The 23 is too close to the 35 to be useful for me as a second lens (not an issue for you) and the 23 often seems not quite wide enough.
The 18/2 has the significant advantage that it is quite small (almost as small as the 27), renders beautifully and is still pretty easy to use with people. Any wider and you need to know what you are doing if there are people in the image.
The 16/1.4 is a good bit bigger. It also requires a bit more attention if people are in the image to avoid unflattering perspectives. The 16 is also fast, can do things few other lenses can do and is, arguably, Fuji's best lens so far.
I have been very happy with the 16, but I must admit the 18 gets a lot more use since I got it because it is so handy and compact.