petermolnar

The plugin expands the image meta by extracting data via exiftool. The default set of keywords is:
<pre><code>-MIMEType', '-FileType', '-FileName', '-ModifyDate', '-CreateDate', '-DateTimeOriginal', '-ImageHeight', '-ImageWidth', '-Aperture', '-FOV', '-ISO', '-FocalLength', '-FNumber', '-FocalLengthIn35mmFormat', '-ExposureTime', '-Copyright', '-Artist', '-Model', '-GPSLongitude#', '-GPSLatitude#', '-LensID'
</code></pre>
which can be altered with the <code>wp_extraexif_exiftool_vars</code> filter (one argument, an array with the values above).
Later on the extraced values live in the same place where the default, WordPress extraced EXIF lives and can be access from the same array.

wp-extraexif

A plugin that uses exiftool to read and store extra EXIF values of an image, which WordPress can not on it's own, such as Lens name & ID, GPS …

veleno

EXIF Viewer displays EXIF data in Edit Media Screen, appends EXIF data to JPEG media page content, enables media archives. 
In order to show image archives, add the following query string to your website URLs: 
?post_type=attachment

EXIF Viewer

EXIF Viewer displays EXIF data in Edit Media Screen, appends EXIF data to JPEG media page content, enables media archives

wp-extraexif vs EXIF Viewer