Banana plant with banana image

Settings for this image
Aperture value::f/5.0
ISO value::100
Shutter speed::1/100
Flash used
Zoom length::40mm
Camera :: Nikon d3500

Flower image 3 settings

Settings for this image

Aperture value::f/5.6
ISO value::400
Shutter speed::1/125
Zoom length::55mm
Flash used
Camera::Nikon d3500

Object image 2 with settings

Settings for this image

Aperture value::f/4.8
ISO value::200
Shutter speed::1/60
Flash used
Zoom length::38mm
Camera:: Nikon d3500

Object settings

Settings for this image

Aperture value::f/5.6
ISO value::400
Shutter speed::1/125
Zoom length::40mm
Flash used
Camera:: Nikon d3500
Exposure compensation value:+2.3

Waterfall image 2 with settings

Settings for this image

Aperture value::f/18
ISO value::12800
Shutter speed ::1/30
Flash used
Zoom length::55mm
Camera:: Nikon d3500

Waterfall image settings

Settings for image

Aperture value::f/18
ISO value ::12800
Shutter speed::1/80
Flash used
Zoom length::34mm
Camera:: Nikon d3500

Flower with settings

Settings for the image

Aperture value ::f/5.6
ISO value::100
Shutter speed ::1/100
Zoom length::55mm
Flash:: used
Camera:: Nikon d3500
Lens : 18-55mm

Portrait image settings

Settings

Aperture value ::f/5.6
Shutter speed value ::1/100
Lens used :: 18-55mm kit lens
ISO value::100
No flash used
Zoom length:: 55mm
Type of camera:: Nikon d3500 DSLR camera

Description
If we want to blur any image background we need maximum zoom length. The higher the zoom length the more blur background we get. If we use lower ISO value then we don't have any noise in image. Try to keep aperture value to maximum as possible to get blur