Originally posted by jgnfld ut I guess I'm asking what to look out for when the new body comes that is different enough to have to deal with right away.
1. The ergonomics will take some getting used to. (I still don't like them, compared to the K-3, K-30 or K-S2.) Try the different hand grips. I prefer the large (didn't come with my model; it was kindly supplied by a member here), but find even that too small. The shutter button is less comfortably placed than on the K-3.
2. Work out what you prefer to do with the third wheel. It is very customisable. I assigned ISO to the C1 setting and expected to use it constantly. But in practice I use TAv so often that setting the ISO is not the most frequent change I make (aside from aperture and shutter speed). I actually find the changes I make most are AE metering (AE on the mode dial) and AF active area (set to C2 on the dial). CH/CL allows you to toggle through the settings in the drive mode (for example, if the drive mode is set to continuous shooting, turning the third wheel toggles between H, M and L).
3. You can assign all sorts of functions to the other buttons. Frankly I can never remember which function I have assigned to which button!
4. I tried back button AF on the camera but I have switched back to shutter button AF. That is partly because I don't like the placement of the "AF AE-L" button but mainly because I mostly use focus point select and need my right thumb available to move the focus point.
5. You have to remember that Live View is selected with the On/off switch.
6. The tilting screen is quicker to deploy than the flip screen (which I have on the K-S2), but it is frustrating when the camera is in vertical orientation.
7. Shake Reduction is good for an extra stop or so over my other cameras.
8. Not sure what to think about electronic shutter. I only use it for Pixel Shift. YMMV. The mechanical shutter is much quieter than on the entry models (K-30, K-S2 etc) but maybe not as quiet as on the K-3 (?).
9. Burst mode is mostly adequate but lags behind the K-3.
For all its quirks and limitations, I use the KP constantly now. The IQ is excellent. It is worth an extra stop or two over the K-3.