Originally posted by tgchan I mainly go for a walk and shoot everything that I like (or may sell on stock sites ;p) I love macro and my x20
That means, while you learn you are zoom guy. Take look at your shots statistics, to predict areas you tend to shoot.
18-135 can do impressive things in right hands. it is not macro thou... for macro you need or real macro or smth else, but it makes good sharp closeups, resembling macro. It is best overall Pentax kit-lens by far and is WR, big bonus. To get sharper, you get limited by limiteds LBA
i have taken around a lot pictures with 18-55, even this one can take pictures, and must say better ones than your fujifilm.
if long range is not so important to you, you can take K-30 (i like personally less K-50 while inside it is 99,9% same as K-30) and 18-55 +some true macro for example. witch macro, it depends. if you are just in budget, K-30 with kit+some samyang 85mm,(or 35, 24) for sharp and fast shots, or some DA 21 for example.
Still, you must know your habits.
Originally posted by tgchan I am in pursue for crisp sharp photos and I hate fuzzy,painty quality
Sharp is good, but only on it's own place.
Most of true art is not sharp at all, or is sharp on some critical point
This is part, i would say ( and i am noob hobbyist) it's you, not your optics.
I looked your examples from x20.
You shoot often against strong light without filters. That means- ground is dark, or you blow up sky. You tend to choose sky.
You misplace often horizon by height. and x20 did quite not help you on DOF.
No camera nor lens does not help you truly out here. You have to learn limitations of your gear and take best out of ones you have.
in this means APS-c (any of them) may be sufficient and you may find it limiting -because they all have limits in plain pixel density on sensor.
You may get more growing room with K-3, but not too much, want to go higher, go FF.
Originally posted by tgchan - DA 18 - 55 mm AL WR and DA 50-200 f/4-5.6 ED WR in one package - DAL 18 - 55 mm, DAL 55 - 300 mm f/4,0 - 5,8
This is really starter combo, most daily range covered. About kit i told, you could make nice pictures, with some trial and error, but you probably will want more details later. 55-300 is very good to handle, has very good telemacro at his price, but has also strong CA at long end. Because last it is usable in 55-225(250mm) range max.
Originally posted by tgchan do you think these DA 18 - 135 mm ED AL IF DC WR would be enough for me?
Are you good enough for this lens?
With less joking, 18-135 and some limited or macro limited later will be good for some years.
All that said
K-30 (or50) is excellent piece, very good viewfinder. if it fits your hands and taste... i wouldn't consider anything else from pentax unless i can get FF (and FF means already different thinking habits and gear). K-3 maybe, but here price plays most role.
Last but not least -calculate decision is good, endless recalculation is no good at all. Even bad decision you stick with is better, than constant mind change.