I have two cameras of the same model and want to separate out the photos taken on each one. Is this possible?

Question

I have a Canon and my husband has a Canon, and they are the same model (mistake!)
I imported his photos into my library (I'm the keeper of the photos), and now I want to seperate out his photos from mine.
To make matters worse, the dates are the same (since we travel together) and the file numbers overlap (because the world is out to get us).
They are thoroughly intermingled, but I'm hoping there is a super geeky way to seperate them.
Ideas?

Answer 1

Try to separate the photos by "import session".
Assuming you can recognize some of the photos you took - perhaps there are some photos showing your husband and some photos showing you - these photos will tell you the import session. All photos you import into the library will be assigned an import session metadata tag, so his photos should have all the same import session tag.
To show this thag, set the Info panel in the Inspector to "Edit" and add it to your current Metadata view.
Once you found the Import Session for your husband's photos, create a smart album based on this meta data tag.
When I import my husband's photos in my library, I use a metadata preset on import, that will assign automatically a keyword, set his copyright, and adds a color code. So I can see at a glance, which photos are my photos and which are his.