To export your photos as TIFF files, you need to enable the function first. Go to your Profile, tap on the 3 dots at the top-right, then select Settings and enable TIFF export. On your instrument page, ensure that you have also selected the TIFF format in your storage settings.
From the "Observation" screen, tap the 3 dots at the top right and choose Export TIFF.
To save the file:
On iPhone or iPad, you can save the TIFF file in your device's Camera Roll or send it by email to yourself.
On Android, the saving process varies depending on the brand and model of your device. If your device doesn't offer the option to save the TIFF file in your Photo Gallery, you can send it to your email or download it to a Drive (Dropbox, Google Drive...).
For Stellina users, the TIFF file will also be stored on the USB drive inserted into the battery compartment.