If the camera is not reading the coding you can set the ISO manually.

What does digitally compatible mean?

Some of the old glass may not work especially well due to glare or resolving ability, but a lot of them will outperform a "kit" "digital" lens.

I use the FA*85mm 1.4 a lot for my pet portraits and it is still a stellar lens. I, like John have an extensive collection of K; M; and A series lenses and so far have yet to find one that cannot produce a superb image on the full frame K-1.

There is a thread on this forum with a K3 displaying similar issues https://www.pentaxforums.com/forums/58-troubleshooting-beginner-help/365452-its-...

First thing I did with the K1 was reduce the default focus points to 9. I often switch to single when out shooting. i want to be in control of what the camera focuses on, not the other way around.

I am sure it is a great camera, but I have become heavily involved in the Pentax system over many years and cannot see a reason to switch.

What are Sony offering ?

I saw these on the Facebook pentax Ricoh posting. Look even more special in full size.

Oh these are all quite superb.

3 + 15 work well for me

You made the right decision. This is a classic case of if you can afford it, get t. Life is far too short not to. There is a dreaminess about the 1.2 bokeh that is rarely matched even by a 1.4 (maybe I am exaggerating !)

And what a lens it is !. Compared to the 1.4 it is massive and heavy. if you dont take care you can get vertigo looking through it off the camera, it feels like it wants to drag you into that vast space of glass.....oops , maybe too many glasses of Gamay, I will shut up now.

Another super portrait.