Add a portrait-mode blur to the background

This prompt adds a natural shallow depth-of-field blur to the background, as if the photo was shot with a fast lens such as an 85mm f/1.8.

photo-add-portrait-blur — gemini — 44 words

Add a natural shallow depth-of-field blur to the background of this photo, as if it was shot on an [85mm f/1.8] lens. Keep me completely sharp, including hair edges and glasses.

Blur increases gradually with distance. Do not change my colours, skin or clothing.

Edit in the builder Copy & open Gemini ↗Copy & open ChatGPT ↗

Check fine hair and glasses edges for halo effects and ask to fix them.

Your photo goes to the AI app you choose, never to PromptUp.

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What you will get

Your photo with a smooth shallow-depth blur behind you, like a fast portrait lens, with you, your hair edges and glasses staying sharp, and the blur growing the further things are from you.

Common mistake

A halo shows around your hair.

Fix: Zoom in on strands and glasses frames. Ask for “clean edges, no glow around hair”, or generate again if there is a bright fringe.

Also watch for

The blur is the same everywhere. Ask for a gradual blur that increases with distance, so the ground near your feet is sharper than the far wall.
The blur is too strong. Name a gentler lens, such as f/2.8 instead of f/1.4, so the background is still recognisable.

Try a variation: add soft bokeh lights

Ask for gentle round bokeh circles from any bright lights in the background, keeping them subtle and out of your face.

Still not right? Reply with this

Keep me completely sharp, especially around my ears, hair and shoulders. Make the edge between me and the blur soft and natural, with no cut-out outline.