The K-70 can be effectively used in different modes just per basic instructions from the manual. The "green" (automated) mode gives you all automatic settings in case you have to use it. I have not had one due to already having a K-5IIs and K-3II, but it may be a nice choice for you. If your lenses are K mount, which most are, they would be useable with almost any of the Pentax K mount dslrs. You might want to consider the KS2 if you are looking to spend less, but I would still recommend the K-70 since it has the later technology for/in its features. In case you want to get the most advanced dslr other than the full frame K-1, then I would recommend the K-3II, but it seems that you are more interested in something like the K-70 or KS2 level, which would give you nice imagery even so, with the K-70 being capable of more detail than the KS2.
The K-70 and KS2 both are K mount (KAF), so they would utilize K mount lenses that you have, just as the K-3 or K-3II would.
Last edited by C_Jones; 05-15-2017 at 07:01 PM.