> For the complete documentation index, see [llms.txt](https://docs.selvette.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.selvette.com/live-ar-makeup/phone-camera-tuner.md).

# Tune shades with your phone camera

The camera tuner lets you adjust authored shades on a real face before publishing them to shoppers.

## Create a tuning link

1. Open the AR product editor.
2. Confirm that at least one shade exists.
3. Under **On-camera preview & tuning**, select **Get QR codes**.

Selvette saves current shade edits before creating the tuning link, so the phone opens the same values shown in the editor.

## Tune on your phone

1. Scan the **Tune on camera** QR code, or open its link.
2. Select **Allow camera**.
3. Try each shade on your face.
4. Adjust finish, intensity, and coverage as needed.
5. Select **Save** in the tuner.
6. Select **Copy settings** when the signed settings code appears.

The phone camera feed and face data stay on the device. The copied settings code expires, so return to the product editor promptly.

## Apply the tuned settings

### Studio Hub

1. Paste the code into **Apply tuned code**.
2. Select **Apply tuned settings**.

Studio saves the applied tuning directly to the product; no separate **Save product** is required.

### Shopify App

1. Paste the code into **Apply tuned settings** for the same product.
2. Apply the code.
3. Save the Widget settings page.

## Expired links

Tuning links last about 30 minutes. If the phone reports an expired or refresh-needed link, create a fresh QR from the correct store and product.

Next: [Preview and test Live AR](/live-ar-makeup/preview-and-test.md)


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