In the past few years, smartphone manufacturers have started paying more attention to the optics they use on their smartphone, using wider apertures for better low light performance. That’s awesome, but as a photographer, I have an ongoing gripe about the marketing buzz around apertures: An aperture tells you little about performance if you don’t know the camera’s sensor size. As a refresher, all else being equal, wider apertures (a lower number) mean better low light performance and shallower depth of field (more background blur or ‘bokeh’). The problem with smartphone photography is that rarely is everything else equal, sensor…

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