Camera translations work as follows:

• Open Microsoft Translator
• tap the camera icon
• choose the from-language and the to-language
• point the camera to the text you would like to translate and tap the camera icon

To translate a photo please do the following:

• Open Microsoft Translator
• tap the camera icon
• choose the from-language and the to-language
• tap the photo on the left of the camera icon
• select the photo you would like to translate

Camera translations work best when the camera is perfectly level and when there is enough contrast.

Also, please check if the from-language is available as a Camera Translations Language here: https://translator.microsoft.com/help/languages/