For example, the standard kit lens usually has a maximum aperture of f3.5 and ideally you'll what something much wider (lower f-stop number) like a lens that starts at f1.8, f2.0, or f2.8.

Look for a lens with a fast aperture, which is a low f-number such as f/1.8. In crude terms, the faster the aperture / lower the f-number the more background blur you can render.

Facebook’s AI-powered camera can blur photo backgrounds in real time. ... it can blur on out to produce the desirable bokeh effect you get with professional DSLR camera with a low-aperture lens.

DIY DSLR anti-blur hack is cool and looks complex. DIY blur reduction for DSLR users. Shane McGlaun. TweakTown. Published Jan 24, 2011 2:00 PM CST Updated Jul 27, 2022 4:07 AM CDT ...

One of the photos is of Djudjic with zero background blur, while a second of the same subject and scene purports to show maximum background blur. A third photo shows the dual 16MP and 24MP rear ...

It's an update aimed at users that want to click DSLR-like pictures with a blurred background. You do not need a dual camera setup or a default portrait mode in the camera app to use this feature.