Fiatlux

I think you should try both - usability/handling/personal preferences will matter more than IQ, IMHO. I am a long time Nikon user (30y), with the D750 being my most recent camera, and have also developed a little Leica M system on the side - a luxury position I admit. For the last few years I tended to use my M9 with 2-3 lenses for most of my pictures, and only use the Nikon for "action" photography. When the Fuji X system came out it looked like a good compromise and could potentially replace both my Nikon and Leica systems: nice selection of quality lenses, small size and weight, traditional controls I'm found of, convenience of AF... After 2 years of testing the Fuji X system, I decided to resell it and keep my Nikon and Leica equipment. Image quality was not the issue and I find Fuji's lenses truly excellent (with perhaps the exception of the 18mm f/2 which, while good, is clearly not a match for the Nikon 28mm 1.8, not to mention the Summicron 28mm). The main issues, to me, were: my inability to totally "bind" with the EVF, in particular outside with strong sunlight where I often couldn't see much at all. I am a rangefinder lover so this may have biased my judgement; the sometimes unreliable AF behaviour, both in single AF (as with many contrast-based & hybrid AF based cameras, there is a tendency to sometimes focus on background items while I find PD-only cameras are better at identifying foreground elements) and continuous AF (I find Nikon's "group" AF tracking combined with Lock-On particularly efficient in fast-paced sports). But I've rarely been disappointed by the image quality coming from the Fujis

A word of caution to cosinaphile. Industrial rechargeable 18650 batteries can deliver a lot of current, and I doubt they are electronically protected the way camera batteries are. Over 20y ago, I made a similar NiCd battery pack for my Nikon N6006 which was otherwise using expensive single-use lithium CRP2 batteries. A soldering point became loose, a short-circuit occured, and a wire actually melted due to the induced heat, halting my battery pack experiments. The camera was safe but for the same price I could have set the house on fire. And that was with NiCd batteries - much nastier things can happen with overheating Li-Ions.

It is not just a matter of batteries swaps but also, and more annoyingly in my opinion, battery charging. On a multiple-days trip/holiday, with a camera that typically goes through one or several days on a single battery charge (i.e. not a Fuji X ), I tend to only have a spare battery in my pocket (just in case), swap them when required or in the evening, and only have to charge at most one battery each night. With a mirrorless camera, I can easily go through 2-3 batteries in a long day (especially if that involves winter weather). I have 3 NP126s but not 3 chargers, and I already encountered the situation where I could not realistically charge all the depleted batteries overnight, starting a new day with less reserves than I wanted. I this respect, the new X-T2 grip that allows to use up to 3 NP126s in total and comes with a built-in charger for the two grip batteries helps a bit, if you're ready to accept the related bulk and expense. And remember, it is not just a matter of exposures: mirrorless cameras consume a fair amount of power just for the always-on live view, a reason why a diminutive Nikon 1 V1 has shorter battery life than a comparatively massive Nikon D800 while using the same battery! Battery life is an inherent relative weakness of mirrorless cameras (not just Fujis). There's no point in negating it, even if many of us can perfectly live with such limitation most of the time.

For a camera + a small spare lens I tend not to bother with a bag and just take the spare lens in a coat pocket or in climbing chalk bag (dedicated to photo use, I would not recommend mixing lenses and chalk ). Chalk bags are cool looking, very light and dirt cheap as well (mines cost me less than 10$, strap included). Not padded but lined with very soft fleece. And they can be used as protective bags when carrying lenses in a larger bag lacking inserts. Next up in the small, light and cheap scale, I have a LowePro Terraclime bag. The range has apparently been discontinued but I like mine - it is basically as lighweight as the above chalk bag but designed for cameras. Still minimal padding (and no insert) but it means they can be rolled/flattened and take hardly any space when not in use. I have the second smallest in the range which is more for my Nikon V1 or Coolpix A. For an X-T1 and two lenses you're probably looking at the largest one. Finally, my lightweight travel/mini-trip bag is a LowePro Passport Sling, which is extremely confortable and convenient if not necessarilly cool looking (who said diaper bag? ).

I do as well, especially on the second hand market, when priced accordingly. I'll offer 150$ - marks on the LCD are OK but optics need to be clean

As Warwick said, the current line-up, together with the already announced lenses, cover most needs. There are several valid options above, but few that would make much business sens I'm afraid. A lens I would not be interested in but could attract newcomers to the Fuji camp is something like a 18-200, perhaps in the XC range to limit cost. Personally, I would like to see an updated 18mm, as this is a favourite focal length of mine. I've looked hard at the current model but the fact that my 18-55 performs better at 18 as refrained me from buying the prime... so far.

Being a 28/50/90 (ff equivalent) kind of guy, I'd be naturally attracted by a 18/35/60 combo. I already have the 60 but the 18 being a bit weaker than the zoom, I never got around completing my 3-primes kit. I am now thinking seriously about the 27 instead. I can get it for 250€ after cash back. Trouble is it probably would not quench my thirst for the 34 1.4, and/or may push me towards a more expensive wide prime (14 or 16 vs 18).

If I wanted to replicate my other systems' 3 primes kit, it would be 18, 35 and 56 or 60 (i.e. 28/50/90 equivalents), with a 14mm added when a 4 lenses kit is allowed. Trouble is, I have the 18-55 and I know the 18 f/2.0 is a bit weaker than the zoom (not at f/2 of course). I could therefore be tempted to go for a 16/35/56 or 60 trio instead. Advantage is that this would save me the purchase of the 14mm.

Or an X-Pro 2 the size of an X-E, with the specs and AF of the X-T1 (or better), and a 24Mp... Bayer sensor (unless someone can convince me that the X-Trans layout brings tengible benefits ). Improved DR would not harm either. And a few f/1.8 primes (not necessarily pancakes, just more compact).

I hope you're wrong The whole point of the X100 is to give a more compact alternative to the X interchangeable lens cameras. Considering the Leica X-Vario size, you might as well take a Fuji X body with a kit zoom lens.

Medium format digital rangefinder... yummy! Can we have it with a square sensor and a Mamyia 6 mount, please?

I can confirm this works, at least with the built-in flash of the X-E1 (in ext. sync mode) and my SB-800s in SU-4 mode. Full manual exposure and flash power setting, but functional if not as easy as iTTL.