At the end of a very enjoyable three days of astrophotography with a several other astronomers at the Leon Mow Dark Sky Site in Victoria (Australia), I caught a nice display of Geminid meteors. Over two or three hours, while also tending to cameras and telescopes, I spotted about 44 Geminid meteors as well as a number of other 'sporadics'. My camera also caught quite a few.
For two hours, I kept a Canon 5D mkII ticking over at ISO3200 with 8 second exposures through a 24mm f1.4 lens wide open, all on a Vixen GP-DX equatorial mount. I stacked that against a single 2 minute exposure to capture the surrounding stars and the milky way through Orion and up to Sirius and Canis Major at the top.
I count 34 Geminid meteors in the above image. This layer mask that I used in Photoshop might help you identify them - some very faint and another bright one that appeared headed straight for the camera from the meteor shower radiant between Castor and Pollux in Gemini.
That's easily my most productive meteor photographing attempt, and clearly shows the perspective effect of meteors appearing to stream away from the radiant.