How to set priority order to Open Graph images for links that are inserted in comments. (Not sharing or wall posts.)

Question

When pasting a link to a page within a comment, not directly as a wall post, Facebook defaults to choosing a thumbnail image, without users being able to choose the relevant

Answer 1

I have just found out that Facebook will try to display best images (higher resolution) first. For example, if I have 3 meta tags in following order:

then the order of displaying on Facebook dialog will be:

hi-res.jpg
med-res.jpg
low-res.jpg

I hope it will help.