Originally posted by MSL For those who have used both, any thoughts on how they feel in the hand?
I can't compare K-S2 with the K-5 but I can with the K-3 and K-30. I'd describe them as Pappa Bear (K-3), Momma Bear (K-30) and Baby Bear (K-S2). For me, the feel of the K-3 is just perfect: the bottom right corner rests in the heel of my right hand, the middle finger wraps around comfortably, the thumb falls neatly on the AF button (for back-button AF) and the index finger on the shutter. The width is ideal, and the balance and heft are excellent, particularly for lenses >500g. The K-30 (essentially same as K-50) was very good - quite comfortable for each, although back-button focusing is more awkward; the lighter weight was good for carrying and for light-weight lenses, but not as good for big lenses. The K-S2 is the least comfortable for me: the tip of my middle finger presses into the body, and my index finger overshoots the shutter, and having to flex it gives less control. The body is less wide, but quite dense so it feels a little less balanced to me - even compared with the K-30 which is close to the same weight but slightly bigger.
My partner would list them in the reverse order of preference. She finds the K-S2 the most comfortable of the three - more like the old K100D Super that we used to have. I'd say her hands are average size for a caucasian woman - maybe slightly on the smaller side. It has been said that the K-S1 and K-S2 were designed with Japanese women in mind - I don't know whether that is true, but it would not surprise me.
One thing that is noticeable when I go from the K-3 to K-S2 is that the dials and buttons are not as raised and therefore less easy to use; but I guess they are less easy to knock too. The four-way controller is not as easy to use, even compared to the K-30. The PF review specifically mentions that the K-70 is better than the K-S2 in this regard. And of course not having a dedicated ISO button as on the flagship model is less convenient.
You do notice the extra weight of the K-3 compared to K-30 or K-S2 when carrying it for a while. I took the K-S2 and DA-L 55-300 on a walk yesterday and hardly noticed it. With the DA 35 f2.4 it would be rather like a mirrorless.