me too! very very tempting, I'm saving for the 1.4 convertor but this could sway me on the run into christmas! I must be strong!!!

K-S1, it's just £439 (£399 after cashback) at SRS now and the K50 is only £349 (£309 after cashback...

Wish I had some money!

Seems about right?

http://www.techradar.com/reviews/cameras-and-camcorders/cameras/digital-slrs-hyb...#articleContent

Sold to the returning happy wanderer!
That was quick!

Detail here for the Lowepro:
http://www.lowepro.co.uk/products-photo-sport/photo-sport-200-aw_ct257pd235.htm

And the F Stop:
http://fstopgear.com/news/2014-09/new-millar-series-preview-program#.VGIh4Mm9Tz8

A review of the Bandon that explains it better than I ever could...
http://fstopgear.com/news/2014-09/new-millar-series-preview-program#.VGIh4Mm9Tz8

Want £55 for the lowepro and £30 for the Bandon + Postage which will be as cheap as poss!
After a new bag as I'm carrying more kit than I used to, I atually considered going mirrorless just to keep these two bags as I've enjoyed them the most of any I've had! Lowepro is in good nick, the odd scuff but nothing major at all and the F Stop is pretty much unused...
If someone wants em both I'll post em free!
Crappy Phone Pics...

Technically correct but visually things are not quite so clear cut...
I repeat:
The consequences are when no AA-filter is present:
1. false colour: if single sensor sensels are excited in isolation, they will show up as colourful dots (red, green, or blue, depending on which type of sensel is excited), even though the image was monochromatic, for example.
2. demosaicing artefacts: The demosaicing algorithm that re-constructs full RGB information for each pixel from all the individual R, G, and B components in a RAW file can become confused by detail that should not have been recorded in the first place. The result are maze artefacts or similar artificial structures.
I see No1 above as the very worst kind of noise!
To you False colour and de-mosaicing artefacts but to me it's all just noise, lets just leave it at that, shall we?
And it's not plastic it's lithium niobate...

"AA-filter" is a misnomer for the birefringent plates that are put before imaging sensors.
The AA filters in DSLR cameras have a clear blurring effect when looking at 100% crops, they blur information across pixels, in effect reducing the high-frequency content, including noise.
But the Sky noise mentioned above is not present to any where the degree as in the AA filter free models save for the K5IIs which has not got enough pixels to give a decent advantage to removing the AA filter anyway... (Caveat, it's very good at low ISO and F stops under F4)
You also get:
Lots of fine dots: I call it texture because I'm very Pro K3, the ones that arn't call it noise!
false colour: if single sensor sensels are excited in isolation, they will show up as colourful dots (red, green, or blue, depending on which type of sensel is excited), even though the image was monochromatic, for example.
colour moiré: a consequence of the above, but much more visible as the mesh-like structure of moiré shows up on a much larger scale. Big image areas can be affected by (see the last example on the Photo Ninja page).
demosaicing artefacts: The demosaicing algorithm that re-constructs full RGB information for each pixel from all the individual R, G, and B components in a RAW file can become confused by detail that should not have been recorded in the first place. The result are maze artefacts or similar artificial structures.
All in all a pretty dotty scenario...
P.S. I would still take a K3 over anything else out there!

?

Pentax DSLR's are among the best out there, imho THE best but it's not just about image noise, if you increase the DR output you get more noise, if you take out the AA filter you get more noise, if you increase the colour depth, yep you get more noise, it's all about balance, for me the Pentax Balance is the correct one. Canon by default boost the contrast in their APSC sensors which makes them Look very very sharp but they look terribly noisy by default and to get around this they employ very aggressive noise cancelling algorithms which lose the DR/detail and colour depth, however you can turn most of that off, for my money not the right balance but I did give em a try. Fuji uses it's film simulations to crush the blacks out of existance giving the impression that they have low noise but only because you'e lost the top third of your blacks, again I gave em a try, I could go on (I will spare you all)! Basically I've always been willing to give gear a go if it really offers me something but for what I do pentax does just fine, I may yet give the K-S1 a go! It's taken me quite a few years to learn about the Green Grass in the next field, everybody elses mileage I'm sure, will vary. Pentax don't have a so called FF, well, 90% of the shouting and less than 10% of the buying, small wonder that Pentax don't have one yet, when it makes sense I'm sure they will, very shortly...
Addendum:
Laugh if they made a FF/645 "Q"...
Be all over that I would...

A difference in low-light ISO of 25% = 1/3 EV and is only slightly noticeable. That makes the A7s around two stops better than the current crop of Pentax's, that in itself needs putting into perspective...
Firstly you are talking about a camera with No pixels at all, yes thats right not one! (Humor)
Secondly the perspective:

http://www.dxomark.com/Cameras/Compare/Side-by-side/Sony-A7S-versus-Nikon-D3s___...

5 years and we move on a fifth of a stop! Basically, I suspect the sensors have not really moved on substantially in that time but the processing behind them has... Stagnated, yip...
There is always talk of new tech but where is it???

Not really but not having an AA filter will, same goes for the Nikon D7100, and remember Canon use an awful lof of software power to smooth things out, like in the old 7D, (Think of the infamous Canon Plastic wrap), if you want noisey skies try the original Sony A77. The fancy mirror thingy in that one put it at a disadvantage there, however anecdotally the new one seems very good, though I must confess I have never picked it up!