Scrub

Best lens for traveling to Europe? The 23mm on the X100. But seriously... when I would actually take my Canon with me a few years back, I brought my 10-22mm EF-S (for crop sensor only) lens and it was absolutely amazing for Europe in general. Loved it. I also took a 24-70 and never really used it, just carried the beast around. So I'd opt for the 10-24 - it gives you a lot of options, and 10mm is nice to have. Nowadays, my X100 is the only Fuji camera I have, and it actually is all that I take traveling. I still have a Canon but I only use it when I'm shooting for work.

I second the recommendation on the Cactus system, but I use the Cactus V6's - I use one to fire a Canon 580EX from my Fuji X100 and it's great - reliable, easy to use, and reasonably affordable for two transceivers. The thing that sets the 6 apart, though, is that you can remote control the power output of the flash from the transceiver on your camera - you set the speed light to E-TTL mode and then it's fed the power level from the Cactus unit on it, which you can control manually from full power on down in 1/10 stop increments right from your camera. It's super helpful if you're out in nature somewhere and you prop your speed light on some rock somewhere as a backlight, you don't need to keep walking over to it to adjust the power, you can do it remotely. Took a little testing to get it running but now it works great. It also lets you mix-and-match units - you can control Nikon, Canon, and whatever other brands all simultaneously and independently control the power on each. It's pretty cool. I think if you're using Yongnuo speed lights then the Yongnuo triggers are the way to go as a complete system, and from what I've read it's really good, but if you're looking to use different brands with the Fuji and control the power outputs remotely I know the V6 is solid. http://www.cactus-image.com/v6.html http://www.bhphotovideo.com/c/product/1071312-REG/cactus_dicflawftv6_wireless_flash_transceiver_trigger.html