There's a lot of misconception re. the sensor generations Fuji uses. In essence there's no visible image quality difference between the 24Mp X-TransIII/Processor and the 26Mp X-TransIV/Processor. The 2Mp are negligible. There's virtually no visible difference in low-light performance as well. The BSI (back-side illuminated) technology of the 26Mp sensor has a theoretical advantage here because the metal wiring layer is not on top of the photocells, but beneath them. However, the photocells of the 24Mp are larger and therefor the yield of the 26Mp BSI-sensor is lower than the 24Mp FSI sensor (front-side illuminated). That glitches out almost all advantages here.
What does make a difference is the number of AF pixels on the 26Mp sensor (much higher) and the shorter circuits due to the BSI technology of the 26Mp sensor. That allows for greater throughput capacity and quicker AF. Top that with a more powerful processor in the 26Mp camera's and you have snappier AF and higher video bit rates (up to 400 Mbps).
The main differences between the x-pro2 (I'm a long-time owner) and the x-pro3 (tried it extensively) are the LCD screen and the viewfinder. The hidden LCD screen could be very beneficial to a street shooter (from the hip). However, imo it sucks to have to open it for menu access and menu access through the EVF is cumbersome when you wear glasses (and have thumbprints all over them). I prefer a screen like the X100V were the user has options to choose how to use it and which is nicely integrated in the body. The sub monitor is imo a useless gadget as there's not backlighting button like on the X-H1/GFX50S.
The viewfinder for me is the real dealbreaker on the X-Pro3. Though it is larger and brighter, in OVF mode (which is why I bought the X-Pro) there's only one magnification left (x0.50) rather than the 2 magnification levels of the X-Pro2. That renders the X-Pro3 in OVF mode useless for lenses shorter than 23mm and longer than 35mm. I can't use my 16/18mm and my beloved 50mm anymore on the X-Pro3 in OVF unless I settle with a very tiny frame or frame lines outside my OVF. For now I'm sticking to the X-Pro2.
I think the XP3 is absolute overkill for the Fuji X system and almost pointless
Its def overpriced and that "silly" Duratect coating......... really ?
I sell A1 /A2 Giclee Prints of my work shot on XP1 and XP2 and the prints are beautiful from both with in my mind the images from XP1 a preference but either is fine
So there's a point ..... XP3 .... Why ?
People talk about Film Simulation ...... Thats only in JPG, Shoot raw and if you really must use a simulation just adjust in your preferred software ..... Buying an XP3 for a Film Simulation is worse than buying a Leica for a Red Dot ( and I've bought plenty over the years )
Dont waste money guys and seriously dont listen to Fujis "X" Photographers ... most couldn't take a decent pic and only get used because they are happy to write pages of content .... Have you ever heard them say a bad word ?
Fuji make great cameras but please dont get caught up in the hype and waste your money ..... Your XP1/2 didn't suddenly stop taking great pics ... only you did that !
