Two terms that are common in photography are aperture and f-stop, but what do they mean and how does knowing about aperture ...

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 ...

Some lenses are cross-compatible with different sensor sizes, but only some. Next up is the aperture, or f-stop, a measure of ...

What are the f-stops on your camera or lens? And what kind of effect does changing them have? Our chart explains all ...

Each full-stop change represents a 100% increase or decrease in light gathering; that is to say, an aperture that's open to f/1.4 gathers twice the light as one set at f/2.0. There are a couple of ...

F16 would be a smaller aperture. A wider aperture (a low F-stop) means less of the image is in focus. It also means a faster shutter speed can be used. This is how quickly the shutter opens and ...