I am new to photography and my knowledge is limited to just this - have sufficient light, press button to take photo, quality of images in digital zoom is not as good as that of optical zoom and mobile phone cams of today CANNOT match quality of low end DSLR.
My problem - I want to decide if I should buy a high-end external/attachable optical zoom lens for my mobile OR get an entry level DSLR instead.
I want to compare the Sony QX10 (not QX100 which is too expensive) WITH an entry level DSLR like Canon T3i or Nikon D3100. Is this thing so good that it can replace a DSLR ? I don't know what factors to use for comparison other than the optical zoom and maybe sensor size. I need your help to make a decision.