Apple's next iPhone is expected to usher in a serious camera upgrade, but you don't have to wait until then to shoot DSLR-grade photos on your handset, Digital Spy reports.

The DxO One attachment brings a 20.2-megapixel CMOS BSI camera sensor to iOS devices when it is hooked up to the lightning connector.

The accessory also has a f/1.8-11, 32mm equivalent aspherical lens and allows the photographer to use their iPhone or iPad as if it were a camera touchscreen.

Once connected, the iOS device swivels 60-degrees to help users capture angle shots.

A shooting mode called SuperRAW promises to match the output of a DSLR and capture video footage at 1080p30.

Photo and video can be stored on an SD card plugged into the DxO One or saved directly to the connected iOS device.

"It's possible to shoot crystal-clear images under moonlight, which is incredible for a camera this small. The shallow depth of field and bokeh of the lens at f/1.8 is absolutely perfect for portrait photography," said Jerome Meniere, CEO and founder of DxO Labs.