I might be a late adopter, but I have been busy.
The K-5 II still did everything I needed for it to do until I made the decision to go FF.
I was excited to see what Ricoh had in store for the next generation of Pentax shooters.
My abridged user review is posted here:
Pentax K-1 II - Pentax K-mount DSLRs - Pentax Camera Reviews and Specifications
First impressions (the positive):
1. Unboxing the camera, I was confident in the same sturdy build I was accustomed to with all the other Pentax cameras I have owned over the last 12 years, all dSLRs.
2. The shutter is smooth and quiet in operation. I like it, even if the frame rate in FF captures is considerably slower than the APS-Cs and alternate brand FF counterparts.
3. It is not heavy. I was expecting it to be quite noticeably heavier than the K-5. Not so, perhaps it's because I always had the battery grip on, and a couple hundred extra grams on top of 1kg was not enough to be concerned about.
4. It is not large. Camera comparisons are inflating the extra size the K-1 has over the K-5 and K-3. It makes no difference in the bag nor in the hand. It still compares very well against all other FF dSLRs, and even some MILCs.
5. The menus remain straight forward to use, and the addition of the info screen is a nice bonus to access settings quickly.
6. AF is quieter, faster and yet just as accurate. Even the AF-C tracking is improved. Not just marginally.
7. The image quality at the computer editing end is everything I expected it to be. Crisp, clear and there's less editing effort required to get from a RAW to a workable JPEG saved.
Other first impressions (the critical):
1. The VF AF-spot overlay will take some getting used to. I liked the consistency of the *ist D to K-5 VF with its red spot AF confirmation marks. The black-to-red squares occasionally made me doubt whether I got focus right to not.
2. The AF confirmation "beep" sounds more "robotic" than the previous cameras, a minor personal preference I have for the K-5 and previous cameras.
3. The camera makes a whirring sound whilst shooting even when AF is not engaged and the camera is not shooting. Never happened with any previous cameras.
4. The camera's jutting backplate does not sit flush with the battery grip. What's with that? It feels awkward and more clunky to manipulate the camera from landscape to portrait as a result, but I guess it would have made the back LCD less flexible with movement.
5. The third e-dial is one stiff dial!
6. Probably too much redundancy in the access to features, like being able to adjust ISO with the front e-dial, the ISO button near the front e-dial, as well as the function dial that the 3rd e-dial is assigned to.
7. The battery grip's plastic wheel that screws in the grip to the camera body rattles when fiddled with! Don't like that at all. All previous grips I have had, even from the *ist D never had any laxity to them.
Shooting with the camera:
It's all good. Nice VF experience with all my f/2.8 and faster lenses. FA Limited lenses are quite different on the K-1; so much more in the frame. AF locks quickly and I have not had it hunt yet to fix focus. Lots of pixels to play with. Good results so far with ACR and the clarity is just excellent. I have seen Pixel Shift in action, and it's a decent tool to squeeze every bit of detail out of a scene without the need for lossy sharpening in PP. Handheld Pixel Shift is actually going to be handy in more than just the odd occasion, one just has to remember to turn the mode on when it is applicable. It's probably more camera than I'll need, but just like a fine car, we don't get the opportunity much to push it to its limits, but we can appreciate its excellent design, engineering and function nonetheless.
Thanks for reading.
Handheld PS, ISO 800 with FA 31 at 1/20sec, no sharpening or NR applied, no AA filter, 100% crop