From the Pbase help pages:
How do I add cameras or lenses to the database?If the camera database at
http://www.pbase.com/cameras is missing something, please send an email to
cameras@pbase.com and we'll add it as soon as we can.
If you have photos of the actual cameras you would like to contribute, we'd love to have them.
You could either email them as attachments to
cameras@pbase.com or if you already have them on PBase, let us know which gallery they are in.
If you want your photos to show up as samples taken with a camera or lens, just set the camera or lens type by editing the image. Then the next time the camera sample database updates, your photos should be listed.
Eventually we hope to make the camera database more easily editable by anyone. So that you can add information about or photos of the cameras yourself.