I took a look at the review in the review section about the new DFA 28-105mm and surprisingly it's seems like another budget zoom, but costs 600€...
Prior to K1 launch, I thought why not buy all those highly rated cheap zooms for cheap before the K1 storm unleashes and price to climb up.
Here I only mention auto aperture Pentax lenses.
PS : there are more or less CA in those corner, and even on the edge of the UWA zoom. But this is to be expected and nothing LR or even profiling won't cure! So no issue for me. If you want no CA, be prepared to pay the price or make automatic profiles for those lenses.
I have,
F 70-210 : superb lens.
F 80-200 : extraordinary lens. The best I think but slow. It's a non issue with the sensitivity of the K1 IMHO.
F 35-70 : nice.
F 35-105 : disapointing (may be my copy that I cleaned)
F 100-300 : fair. But gets the job done. CA on the edge but SHARP!
F 35-80 : extraordinary but short range and not that wide.
FA 28-70 AL : very very nice. Less CA than usual
FA 28-105 PZ : superb lens
Now the manual zoom lenses:
A 24-50 : superb
A 70-210 : superb
And the expensive zoom and prime so no bargain there. But for the price I paid I would say yay bargain for me!
F 17-28 FishEye : just superb
FA 20-35 : I love this one
FA 50 1.4 : I always loved the 50 1.4 from asahi till now
FA*24 : I love the rendering for portait. Fresh.
The review section, if dig up smartly is immensely rewarding for user experience.
Lens sample varies too, expectations from a lens too. But be aware than they are either for film, or for APSC so the real deal with K1 is not yet very clear in those review.
I guess it's just why there are still hidden gems to discover on the K1.
Was a bargain not long ago :
Pentax K 85mm 1.8 WO