Facebook Now Lets Users View Higher-Res Photos
While uploading high definition photos is not new to Facebook, only now has the social media giant introduced an update that will display photos in high resolution by default. The photos can be up to four times larger than before, depending on the user's display.
Besides displaying photos in their high-res glory, the Facebook photo viewer will also allow users to view photos in full screen, with the maximum resolution the photo viewer can handle being 2048 x 2048. Just remember that uploading them requires some patience as it takes longer to upload a high resolution photo compared to a standard or low resolution photo.