Originally posted by mikesbike Back in October, I came to the point of making the same decision, and like yourself have a fairly good supply of very high quality FF lenses, especially in the shorter-to-medium FL range, many of which have been seeing little use with my fine APS-C bodies. I have really missed their use in their full FOV as I enjoyed on my 35mm film bodies. So I went for a K-1 II and I am glad for it. Unless you need the improved action shooting capabilities of the K-3 III, which apparently is a major design goal, or likewise its improved video, like my reasoning for my FF lenses, the K-1 II should prove to be a fine advancement for you. As to the forthcoming K-3 III's superior new VF being "almost" as good as a good FF VF, well my new K-1 II's VF is not "almost". it is great. Then you still have your fine K-3 for its APS-C advantage for longer FL work with lenses of lower weight/size/cost as well as the other fine APS-C lenses you have, or you can switch the K-1 II to crop mode to use them as an alternative. There are still some advantages to doing that- such as lower noise at higher ISO, better DR, and taking advantage of special features offered by the K-1 II, like its pull-out tilting screen for shooting from low or high positions, etc. which the K-3 III does not offer. The price of the new model will probably approach that of the K-1 II rather closely, making adding FF with the K-1 II even more attractive. All of the above reflects the reasoning I employed in my decision. I am very happy with my new K-1 II, for sure.
My FA lens is stock for long time not use much after I got APSC, as you can see my list they are very close in range and not same impact in FF film age i.e. FA20 2.8
Now I use most is
DA10-17 for creative environmental portrait (not use much maybe 3-4 photo per year)
DA14 for interior / some creative portrait
DA 35 2.4 for ultra light kit for casual portrait ... although it's a bit distort the face (not so flattering) for classic portrait but people who like selfie with iphone may like that
DA40 for interior / environmental portrait
DA70 for corporate headshot is very good
FA100 3.5 although not sure optical quality but good for food / table top etc.
The PF (maybe I am wrong to use PF to discribe that) what I mean is when using FA lens in a digital body it look like there is a fog or maybe like I have using a difusser filter over the lens. Most of the time I have to use the Dehaze filter in lightroom / acr for better result and this still don't bring me the same image details / edge with a digital lens... sigh.
I understand there are D FA line of lens but they are quite expensive if I go to buy them all
with that money I may rebuild another system for more MP and more modern workflow i.e. Wifi / Cable tethering / Click then Zoom to focus point for review etc.
Sorry if my words affect your feeling...
In my last corporate assignment, the client from German require minimal 24mp for the job and although he just need to print a 1/4 page in a news letter... Maybe I should go for the K1ii but 36MP maybe not modern enough for the next job