I'm in a dilemma to select the right camera. To give a brief about my photography style/ goal. I take still photography of buildings, gardens with a closeup of the flowers (like the picture I have attached P.S the picture was taken from google,) , dont take much video, like selfies. In conclusion I like my pictures to have more rich details. I was looking through the specs. There were lot of terms such as CMOS, CCD, ISO which I dont understand as I'm not a professional photographer. Can anyone explain what those terms mean help me select the right camera? Also, if you have another camera under 450 bucks which is better than the sony options I gave and suffices my photography goals, please let me know.