Thought there was a thread about this already but can't find it, if yuo can John e so kind as to pop it in there!

http://www.dpreview.com/forums/post/54796682

QVC! Never thought of looking there, thats not a bad move on Ricoh's part, "Every little helps"
As one huge mega Corp used to say before it forgot where it came from, I like the idea of Pentax Ricoh, growing but not getting to be soo big they become cumbersome, or become "Holier than thou" like two or three other camera manufacturers have, or end up having a gorilla in the room at every board room meeting with a Sony Corp Magnum permanently pointed at their heads, "About the 5 axis I.B.I.S. don't mind if we use it do you? DO YOU, theres a good chap..." Ricoh have ideas, they are kind of niche ideas but ideas none the less, they are different and that seems to be a continium, I'll not like them all but they all seem to have an appeal to someone, so whilst any individual model may not top the best sellers list, they all do sell, do for me...

Phew

After downloading all 953 MB (yes, nearly 1 GB) of Lightroom 5.7, you should have camera support for the Pentax:
K-S1 and Q-S1...
New lens support in 5.7 also includes the HD Pentax DA:
645 28-45mm F4.5 ED AW SR
16-85mm F3.5-5.6 ED DC WR
and, 20-40mm F2.8-4 Limited, lenses...

FWIW, badly translated...
https://translate.google.com/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8...

Firefox is playing up and I can't get a translation, I'm sure someone can help out here?

http://photo.yodobashi.com/gear/pentax/cameras/k-s1/index.html

Again not what you want but pretty none the less!
http://c2b6d376b97bcc466063-5420c200a1f030d1394a9548df6eadbd.r5.cf2.rackcdn.com/...%20BROCHURE_121912_LR.pdf

You could always bid...

http://www.ebay.com/itm/PENTAX-K-3-Brochure-Rare-2013-From-JAPAN-/251416264582

I have emailed Pentax Ricoh in the UK to see if they have either a pdf or an actual paper copy, lets see how they do...

http://c758710.r10.cf2.rackcdn.com/files/support/AA_Sim_White_Paper_16Dec.pdf

Best I can do...

If, I'm shooting jpeg, I too prefer natural but also CTE, I find bright loses a bit in the high end (Usually a RAW shooter so I'm a bit anal!) but pretty much all of them get used at some point, Landscape as it is with pretty much every camera I've ever shot can get a bit garish and yet sometimes it does a better job than I do when I get a RAW into Lightroom!