Thanks,
NoMaD_PS,
That was very informative.
For a walk-around (when I want to use just one single lens) I plan to use Sigma 28-135mm. It is a bit too long on the wide end, but it has 1:2 macro on the far end. Being FF lens the quality from it must be reasonable on APC-C sized sensors. Its user reviews are quite good (knowing that it is optically a bit slow at F3.8-F5.6 and really inexpensive). It is relatively small as well, which is important to me.
For multiple lens package - 18-55mm + 35-70mm may do well (for now), as they both are small and light, plus 35-70mm one is supposed to have a macro feature.
I wonder is this macro any better than 18-55 kit lens close-up focusing ability with roughly 0.3x reproduction ratio? Any experience with this?
Oh yeah, Pentax F 35-70mm is a FF lens. this seems like advantage to me as well (What if Pentax will introduce FF someday?).
Cheers,
elg (Erika)