Originally posted by Edmunds Well, here's an update.
Long story short, I bought it!
Couple of thoughts of mine:
The whole "its OK not to have an ultra wide angle because you don't really need it" excuse is extremely poor, and not just because people in forums making excuses for their favorite camera manufacturer makes my eyes bleed, but because there are plenty of reasons to have and use an ultra wide angle. My last 3 trips were to Iceland, the Balkans and Italy, and I found plenty of uses for ultra wide angles - vast mountains, narrow canyons, hiker standing on the edge of a cliff, a up close waterfalls, seaside cliffs, turquoise beach waters, seaside jetties, hiking paths meandering into the distance, tiny orthodox church interiors, and the list goes on.
The wide angle lenses change the value proposition of the whole system. Discontinuation of the 25mm f/4 is completely baffling. The pricing of the 28-45mm is from a bygone era. The only choice is to buy used, but alas, since they are quite rare and expensive new, there's not much choice. The last two used 28-45mm in the EU sold for €1500, which quite frankly isn't bad and I would be willing to pay that, but there simply aren't any for sale. I will just have to wait. Right now, it would actually be cheaper to order used from USA, pay 6.7% import duty and 21% VAT. And this is the case not just for wide angles, but for lots of lenses. Clearly, the availability and the prices of used Pentax gear is vastly different in USA. This has to be taken into account when comparing systems before making a buying choice.
The people who say "the 645Z is still the best for xxxxx", well, to put it bluntly - no, it isn't. The used prices for this gear tell an objective, ruthless story. Undoubtedly, there will be people here eschewing the merits of this system to their dying breath probably a decade from now, however, the rest of the world has basically moved on.
The reasons I bought it:
1) Depreciation has, for the most part, already happened. I can always ebay it and I will lose maybe a couple of hundred euros.
2) Always wanted a medium format. And there it was, in front of me, all I had to do was part with the cash in my pocket. There wasn't really anything to lose.
3) Camera is large, but ergonomics are excellent, no problem using it hand held. Buttons are all where they need to be. Camera speed is satisfactory. 3fps is enough for anything I'd use it for. AF is subpar, but completely workable, I like center point AF best anyway.
4) The 55mm 2.8 lens delivers the exact field of view I was expecting and what I want.
5) Bar the wide angle, all the other lenses I'd buy are pretty cheap. If you don't need the 25, 28-45 or the 90, the value proposition of the whole 645 camera system is fantastic. Comparing used prices you'd have to fork out massively more for a Fuji GFX system and even full frame would be more expensive (if you look at the options near 50MP and lenses to match that). For now I will just make do with the FA 35mm as my widest option.
6) My main camera is an Olympus E-M1 II, which is a fantastic travel camera. This camera complements it really well when I want to do hi-res landscapes.
Well, considering the significant, substantial and for you extremely important negatives you outlined....I'm mystified why you wasted your money, which I think you truly did, given how you feel about the rest of our opinions. I think the best person to comment effectively on all of this is itshimitis---given that he has had both the Pentax 645 system (and used it a lot to great effect) and now the Fuji one. And he also shares I think your concerns and interest in UWA.
I am not one of those who think digital medium format is the answer to all photographic situations/problems (I use both FF and medium format in my professional work) or that the Pentax systems are the best ones available for every photographer (spoken as a former Oly and Sony user, systems I generally loved while I used them). It is for me, though. But I also have a personal quirk you may not have: I need to really like my gear in order to bond with it so I can effectively work. I have to use the museum's Canon cameras on occasion (because they are the best available to me for the job at hand), and I can do it, but it's always grating and I really don't love them---capable tools though they are. Nikon cameras leave me cold as well. I like Sony cameras, although they are a bit small for me now (the A850 was right-sized).
I admire the Fuji cameras, but the EVF on those was a non-starter for me---and I'm not an EVF hater as I liked the one in my A7R and even my NEX7.
IMO,given what you want to do with UWA, you would have been far better off with FF options---which are truly excellent today. Add in P/S and you're getting very close to medium format end results (although some of us think the remaining differences are notable for our work...).