Voted for AF myself, but not for sports or tracking. I just want absolute accuracy with my FA Limiteds wide open at the centre and not having doubts like I do now. Contrast peaking will be useful as well with my A50 f/1.2 and CZ 2/50 Makro-Planar.

Flu card already supports the K-5 I think.
AA filter is very very interesting. I really want to know what they have done with the focusing screen. Might need a new Katzeye

Link on Ricoh US

Type
Digital SLR
Sensor
Type: CMOS w primary color filter and integrated Shake/Dust Reduction sensor movement system
Size: 23.5 x 15.6mm
Color depth: 8 bits/channel JPG, 14 bits/channel RAW
Effective pixels: 23.35 MP
Total pixels: 24.71 MP

Recorded resolutions
Still: Jpeg –
L (24M：6016x4000),
M (14M: 4608x3072),
S (6M: 3072x204,
XS (2M: 1920x1280)
RAW – L (24M：6016x4000)

Movie (resolution/FPS):
Full HD (1920x1080, 60i/50i/30p/25p/24p)
HD (1280x720, 60p/50p/30p/25p/24p)
Quality levels: ★★★ Best, ★★ Better, ★ Good, RAW (14-bit)
Dust Removal: DR II (ultrasonic vibration to low pass filter) with Dust Alert function
Lens
Type/construction: PENTAX KAF2 bayonet stainless steel mount
Usable lenses: PENTAX KAF3, KAF2, KAF, and KA (K mount, 35mm screwmount, 645/67 med format lenses useable w adapter and/or restrictions)
SDM function: Yes
Power zoom function: Yes (power zoom only)
Focus System
Type: SAFOX 11 TTL phase-matching - 27 point (25 cross type focus points in the center)
Focus modes: AF Single (w focus lock, focus/shutter priority selectable), AF Continuous (w focus/FPS priority selectable), Manual
Focus point adjustment: Spot, Select, Expanded Area (S, M, L), Zone select, Auto (27 AF points)
Viewfinder
Type: Pentaprism
Coverage (field of view): 100%
Magnification: 0.95X (w 50mm F1.4 at infinity)
Standard focusing screen: Natural-Bright-Matte III (interchangeable)
Diopter adjustment: -2.5m to 1.5m
Depth of field preview: Optical (diaphragm stop-down), Digital
LCD Monitor
Type: 3.2” TFT color LCD with brightness/saturation/color adjustment AR coating and air-gapless glass.
Resolution: 1037K dots
Wide angle viewable: Yes
Flash
Type: Retractable P-TTL popup flash
Guide number: 13m (ISO 100)
Coverage: 28mm wide angle (equiv 35mm)
Flash modes: Auto, On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync, High-speed sync, Wireless, Manual
Flash exposure compensation: -2 to 1 EV (1/2 steps)
External Flash
Type: Hotshoe (P-TTL), high speed sync and wireless w PENTAX dedicated flash, X-Sync Socket
Synchronization speed: 1/180 sec
Storage Media
Internal memory: n/a
Removable memory: SD, SDHC, SDXC, EyeFi, FLU
Interfaces
Ports: USB 3.0 hi-speed, AV out, HDMI out, DC in, cable switch, 3.5mm stereo microphone, X-sync socket
Video out: HD (via HDMI), NTSC, PAL
Printer interfaces: n/a
Power Supply
Power source: Rechargeable Li-Ion battery D-LI90, D-BG5 Battery Grip (optional) with trays for 2nd D-Li90 battery or 6x AA batteries
Recordable images: Approx 720 (approx 560 w 50% flash, CIPA)
Playback time: Approx 370 min
Movie recording time: Approx 25 min (automatic overheat shutdown protection)
AC adapter available: Yes - (optional) K-AC132
Physical Specs
Body dimensions (W x H x D): 5.17in x 3.94in x 3.05in
Body weight
Without battery or removable memory: 25.2 oz
Loaded and ready: 28.2 oz
Construction material(s): Magnesium alloy shell over metal chassis
Weather resistant: Yes (92 special sealing parts)
Operating temperature: 14-104°F (-10 to 40°C)
Language Support
English, French, German, Spanish, Portuguese, Italian, Dutch, Danish, Swedish, Finnish,
Polish, Czech, Hungarian, Turkish, Greek, Russian, Korean, Chinese
(Simplified/Traditional), Japanese
Image Stabilization
Type: Sensor-Shift Shake Reduction with rotational compensation (3.5EV TBD)
Electronic level function: Yes, verification via viewfinder and LCD panel
Metering System
Type: TTL open aperture metering using 86K pixel RGB sensor
Sensitivity range: EV -3 to 20 (ISO 100, 50mm F1.4)
Multi-Segment: Yes
Center weighted: Yes
Spot: Yes
Exposure compensation: +/- 5 EV (1/3 and 1/2 steps)
Exposure lock: Yes
Exposure bracketing: Yes (2, 3, or 5 frames, up to +/- 2 EV in 1/3 or 1/2 steps)
ISO Sensitivity
Auto: ISO 100-51200 (1, 1/2, 1/3 steps), Auto ISO range selectable,
Bulb mode: Auto ISO n/a
Manual: 100-51200 (1, 1/2, 1/3 steps),
White Balance
AUTO WB, Multi Auto WB,
Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, Naylight White, W:Cool White, L:Warm White), Tungsten Light, Flash, CTE,
Manual mode(s): Yes, Manual WB (up to 3 settings), Color Temperature Configuration (up to 3 settings), Copying the white balance setting of a captured image* WB fine adjustment available in all modes
Shutter
Type: Electronically controlled, vertical-run, focal plane shutter
Shutter speed: 1/8000 to 30 sec (1/3 or 1/2 EV steps), Bulb
Capture Modes
Mode selection: Green, Hyper Program (P), Sensitivity Priority (Sv), Shutter Priority (Tv), Aperture Priority (Av), Shutter & Aperture Priority (TAv), Metered Manual, Bulb, X-Speed, USER (3 presets).
Custom Image Modes: Bright, Natural, Portrait, Landscape, Vibrant, Radiant, Muted, Bleach Bypass, Reversal Film, Monochrome, Cross Processing,
HDR: Auto, HDR1, HDR2, HDR3, Exposure Bracket Value adjustable, Automatic composition correction function
- All include gamut radar and fine adjustment of saturation, hue, high/low key, contrast, and sharpness (regular and fine adjustment scales). Monochrome mode includes adjustments for filter effects (green, yellow, orange, red, magenta, blue, cyan, infrared), toning (sepia, warm/cool), high/low key, contrast, and sharpness (regular, fine, and extra sharp adjustment scales).
Green simplified mode available: Yes
P/A/S/M/B: P, A, S, M, B (extended modes Sv, TAv)
Date stamp: n/a
Digital filters (capture): Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome
Data record: Folder name (standard, date), file name (standard, customizable), embed copyright.
Drive Modes
Mode selection: Single, Continuous (H,M,L), Self-Timer (12s, 2s), Remote (0s, 3s, continuous), Exp. Bracketing (standard, timer, remote), Mirror up (standard, remote), HDR Capture (3 shots at 1EV, 2EV, or 3EV, 3 blend settings plus Auto, pixel alignment)
Multi-exposure: Composite Mode (Additive/Average/Bright) Number of Shots (2 to 2000 images), Interval 2000 shots, 2 sec to 24 hrs, time delay available)
Continuous FPS (JPG ★★★
- Continuous H: Approx 8.3 FPS (60 JPG, 23 RAW)
- Continuous M: Approx 4.5 FPS (100 JPG, 32 RAW)
- Continuous L: Approx 3.0 FPS (200 JPG, 52 RAW)
Self-timer: Yes (12s, 2s)
Remote control: Yes, infrared (0s, 3s, continuous), cable switch
Playback Modes
Mode selection: Single frame, multi-image display (6,12, 20, 35, 80 segmentation), display magnification (up to 16, 100% display and quick magnification available), rotating, histogram (Y histogram, RGB histogram), bright area warning, Auto Image Rotation, detailed info, Copyright Information (Photographer, Copyright holder), Folder Display, Calendar Filmstrip Display, Slide Show Mode pallet: Image Rotation, Digital Filter, Resize, Cropping, Slideshow, Save as Manual WB, RAW Development, Index Print, Protect, Movie Edit, Extract JPG from Movie, Magnification: up to 16X, scrollable, quick magnification.
Digital filters (playback): Base Parameter Adj, Extract Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Bold Monochrome, Tone Expansion, Sketch, Water Color, Pastel, Posterization, Miniature, Soft, Starburst, Fish-eye, Slim
File Formats
Still: RAW (PEF, DNG), JPG (EXIF 2.30), DCF 2.0 compliant
Movie: MPEG-4 AVC/H.264（MOV) - JPEG(AVI) for internal movie record
Custom Functions
Functions available: 27
Computer Requirements
*For device connectivity. Bundled software requirements may vary.
Windows: Windows 8 (32 bit/64 bit) / Windows 7 (32 bit/64 bit) / Windows Vista (32 bit/64 bit), Windows XP SP3 (32 bit)
Mac: Mac OS X 10.8 / 10.7 / 10.6
Battery Life
Power source: Rechargeable Li-Ion battery D-LI90, D-BG5 Battery Grip (optional) with trays for 2nd D-Li90 battery or 6x AA batteries
Recordable images: Approx 720 (approx 560 w 50% flash, CIPA)
Playback time: Approx 370 min
Movie recording time: Approx 25 min (automatic overheat shutdown protection)
AC adapter available: Yes - (optional) K-AC132
Dimensions
5.17in x 3.94in x 3.05in




Weight
Body weight
Without battery or removable memory: 25.2 oz
Loaded and ready: 28.2 oz
Operating Temperatures
Operating temperature: 14-104°F (-10 to 40°C)
Operating Humidity
Weather resistant: Yes (92 special sealing parts)

I am making a presumption that Pentax have only now moved to this sensor because they believe that it is equal or better than the 16MP version, could be that they needed the last year to get to grips with dealing with the sensor output in the the Pentax way or there has been an improvement in the manufacturing process at Sony and the current revision has finally matched Pentax's standards.

I am pretty confident though while at the same time keeping my fingers crossed.

This is looking more and more like a worthy flagship and fantastic partner to the magical optics available in our system. Bit depressed that I can be in Watford on Wednesday now. Looks like they've taken on board most of the typical long standing Pentaxian's wishlist. Improved AF, better sensor, dual cards, better processing and all the while keeping probably the best sized and ergonomically laid out Dslr on the market.

The holy grail of Pentax lens

Tempting...

Surely it would also be dependent on the glass you're putting in front of the sensor? If you have a couple of non professional zooms and a prime or two of older vintage for example perhaps you may be in for a rude awakening with the 'S' type sensor as it may well highlight any lens shortcomings and look less sharp sans AA filtering. If you have some exceptional zooms i.e. DA* or FA* caliber along with some good to exceptional primes then the 'S' should in theory kick in and add something extra to the returned image sharpness wise.
Really you have two choices, suck it and see yourself or find a set of RAW images taken with a K-5II and K-5IIS along with something like a DFA50 Macro. Then have a good hard honest look at the shots you're taking, the kit you have and whether or not the K-5II or (S) will be the preferable option for you.

DA35 arrived safe and sound yesterday.

Beautifully packed and in great condition.

I started my research into a dslr in 2007 time I think it was and remember reading an AP article about the K10D.. "Pentax strikes back!" was the tagline I remember, there was an other sentence that stuck with me as well, which they used to sum it up, "a photographers camera"

K20D then came out while I was still researching and again the sum up contained the "a photographers camera designed by people who use cameras" or something to that effect. Add in the fact that most of the forums for Pentax generally seemed well behaved (at the time) and discussed photos rather than upgrade this or you need to have the model 2 rungs up for the other brands pushed me to think Pentax and I bought a K20D sight unseen in 2008 along with a DA16-45 (you can't buy Pentax in Ireland you see) from SRS. I still have the first shots I took the following Saturday morning, all underexposed, kinda blurry in some instances but I was hooked.

I skipped the K-7, got the K-5 when it first came out and will probably get the successor to the K-5II when it eventually appears.
Glass wise, I've had a ball, Auto Takumars, Super Takumars, K's, M's (to be fair not many as the others) A's, never touched an F series lens, have had some FA's and DA's, some Russian stuff, even tried a Tamron once briefly before gifting it to my father in law. I am currently indulging myself with some Zeiss and Voigtlander but you know what? the FA Limiteds actually have them covered which secretly I knew was going to be the case because Pentax have always known how to design great lenses. The fun is finding the top 3 in each series

If I have one regret with my 4 or 5 years with Pentax, it is that I sold on my original K20D, I bonded with that camera more so than I have ever done with the K-5. It took an idiot with absolutely no idea whatsoever about even the basics of photography and at the end of 2 years had outputted a user that could probably pass a college course. That to me is the real testament to Pentax's design philosophy, ease of use, common sense and a design that can cover fully automatic green mode to pure M mode, all in all, a photographers camera designed by photographers