Originally posted by LeRolls I understand where you are coming from and I'm definitely not trying to start an argument or anything but I think there are a few things to consider. Firstly when I see Youtubers make comparisons they usually list the camera and lens together as a combo which if you are looking to jump from one system to another is a reasonable way to look at it since you are not only using a lens from a different system but an entirely different camera as well. So in the case of the A7III with the 85 1.8 it retails for basically $2600. The Fuji X-T3 with the 56 1.2 is roughly $2500 (not sure where you got the $1500 price point for that lens from as it has almost always been listed as $999 full retail but happens to be on sale for $750 right now). Yes one is a FF and the other is a crop sensor and honestly that used to matter a lot to me but seeing the output on the X-T3 it no longer matters as much to me. So I think for me those two combos are reasonable comparisons. Secondly you mentioned the 85 GM 1.4 which I have not personally shot with but did have a chance to hold one time and boy was it a big heavy lens not to mention very expensive at roughly $1700. Almost every YouTuber who has shot with both the 1.8 and 1.4 seems to think there is little to no difference in the actual rendering of those two lenses and they usually end up selling the 1.4 and keeping the 1.8 because while it is as you say the "budget" portrait lens from Sony it still competes with the premium offerings at least when it comes to output which is what I am mostly concerned with. Now obviously one is a 1.4 and the other is a 1.8 but even when I was shooting with the Pentax 85 1.4 I almost always shot at f1.8 or f2 anyway and since the Fuji is a crop sensor and the 1.2 is equivalent to 1.8 on FF then that doesn't matter to me either.
Now with all the points that I just brought up I also understand that YouTubers are well...just YouTubers and definitely not the end all be all of photography knowledge. God knows that I most definitely take most of what they say with a grain of salt these days. So yes I do agree with you that I really should try the 85 1.4 GM and the 100mm STF so that I can form my own opinions on those two lenses. At the end of the day I plan on keeping both systems as I see advantages to both. The lowlight is vastly superior on the Sony no doubt in my mind and I am very interested in what Sony has in store for the eventual A7R4 which may be a 60 megapixel beast. Sony is also getting better and better when it comes to their color science which was something that bothered me for the longest.
The $1,600 is for the APD version of the 56mm F/1.2. I had them mixed up.
I have the 85mm F/1.8. I had the Batis 85mm and I sold it with plans on buying the GM. I ended up with the 85mm F/1.8 and the 100mm SFT instead. I have shot with the 85mm GM 4-5 times. Its big, heavy, and slow to focus compared to the F/1.8 version. The F/1.8 version is just as sharp as the GM version and for a lot of work its hard to tell the difference. I usually shoot at F/2 - F/4 so I don't need F/1.4 often. The GM does have better bokeh and if you shoot into the light, the GM handles flare much better. The F/1.8 doesn't have the coatings that the GM does and it shows, but it also render more like older lenses which some people like. The GM will give you more of that 3D pop that people like. That is when the FF sensor starts to pull away. The 100mm SFT really has a special look to it, but you have to use it a very specific way or its nothing special and its not always possible to use it that way. Its an awful natural light lens.... unless you are shooting flowers on a tripod or something.
I don't like Fuji reds when it comes to the JPEGs. I see lipstick bleeding to magenta too often or other shifts that I don't like. The Sony A7II use to give me an orange skin tone that was often hard to process out without going to Photoshop. The A9 doesn't have that problem. The only thing I like about the Fuji system is that its fun to use. It's the best APS-C system on the market and they managed to achieve that in just 5-6 years. The Sony is more of a boring workhorse system. Ergonomics and menus are average at best. Its not a very attractive camera and the lenses are expensive. However, it really works. I'm using the A9 so its a little different, but I can basically shoot and never have to worry about AF. I love the user experience of shooting with the K-1, but it was a challenge compared to Sony. I didn't realize how much easier things could be until I switched over. I almost went to Fuji.
What does the Fuji do that you can't do with the Sony? Colors are not really an issue. Sean Tucker is a former Canon turned Fuji turned Sony photographer who does some pretty good videos.