I am really confused to buy Nikon 35mm dx 1.8 or 50mm fx 1.8 for my Nikon d3300 Camera, because of its 1.5 crop factor. I read in a review that I need to multiply my crop factor (1.5) with F stop (1.8) as well. Is that true ? I knew that if I use 50mm fx lens in my camera it will be slightly zoomed. But I am not cared about it. My only concern is about the f stop. Do I get f max stop as 2.7 [(lens f stop - 1.8) x (crop factor - 1.5) ]. Will my F stop actually reduces from 1.8 to 2.7 if I use 50mm fx lens ?