After upgrading to OS X 10.9 Mavericks, I was unpleasantly surprised when I plugged in my camera SD card to try to upload a few new picture I have taken.

I always keep the photos on my SD card as a backup, and formerly iPhoto would scan through the card then pop up and show me the new pictures for import. Now, instead of seeing a progress bar as it scans there is just a similar delay with no progress bar, and the only choice it gives me is to "Import 2054 pictures". This is ridiculous and there is no way I am importing that many pictures just to get the 5 new pictures I took today.

I'm assuming this is the fault of the Mavericks upgrade, and need to figure out how to get the old behavior back. I have read about a "hide previously imported photos" but I don't see that anywhere under preferences (was it moved in this version?).