Quick tip: Merging photos from two different cameras

This time when we went to Pondicherry on the year end, we took two cameras - I took my Rebel XTi and my wife the LX3. While uploading our photos to Flickr, we had a problem. We wanted to merge our photo sets, but because of the different photo naming conventions of the two cameras, the photos won’t be sorted according to time taken. The solution, as I found out after a bit of digging and trying out different exif tools, was simple enough.