Starting with version of Easy Photo Uploader you will be able to customize the comment set for each photo uploaded to Facebook!

Just go to the settings, then select the Misc tab:

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Click Edit, and you will be able to enter your custom text, and even add metadata dynamically from each file. These include basic file information (file name, extension, date), but also EXIF and IPTC data embedded in the image. For example, %ExifAuthor% will display your name if it's saved within the image.

A preview shows you how the comment will look for each photo:

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This way you can easily display your details, copyright, camera data, and other relevant information next to your uploaded photos!