But there's one thing that really gets my goat: that f/1.7 aperture. What gives with these unnatural fractions of an f-stop? I know where I am with an f/1.8 lens, just as I know the score with an ...
A wider lens aperture will narrow down the depth of field, blurring out more of the foreground and background, hence creating a better bokeh. This is where the term F Stop comes from. In camera ...