Aperture. Also known as F-Stop or F-number. No?
That thing that says, for example, f/3.5 on your camera. Still lost?
The thing that gives that beautiful blur/shallow focus behind your object/subject when taking pictures.
For years I was, and still am, obsessed with a low aperture. (That means lots of blur behind the object or subject). Unfortunately, my standard kit lens (18-55mm f/3.5-5.6) can only provide so much ‘blur’. That was until I bought my 35mm f/1.8. (And yes. f/1.8 means lots of blur.)
Just to make sure we’re on the same page, f/1.8 means lots of blur and f/15 means less blur. Small number means blur, big number means less blur.
Now, just to clarify. If you buy a lens like this, it doesn’t mean your photos will automatically become ‘better’, although it might seem like it. Shooting with a 35mm prime lens at a low aperture has a learning curve. It’s vital for you to nail your focus otherwise most of it will be a blur.
For example, take this picture I shot last year in Namibia.
It might look like that everything is in focus, but if you zoom in you can see the focus wasn’t on the flower, instead, it was just behind it, a centimetre away. Because of that, most of the flower is blurred.
A good tip will be to always check and make sure your photo is in focus when shooting. Don’t just assume it will be. Always zoom in on the picture, after you’ve taken it, to double check.
It does take some time getting to grips with shooting at a low aperture, but once you get the hang of it, the fun will begin.