Two years ago, San Francisco-based photographer Shawn Clover began to create an amazing series of images, titled 1906 + 2010: The Earthquake Blend, featuring photographs captured during the devastating 1906 San Francisco earthquake blended into views of what the city currently looks like.
To put these photos together, I first create a catalog of historical photos that look like they have potential to be blended. Unfortunately most of these photos end up on the digital cutting room floor because there’s simply no way to get the same photo today because either a building or a tree is in the way. Once I get a good location, I get everything lined up just right. My goal is to stand in the exact spot where the original photographer stood. Doing this needs to take into account equivalent focal length, how the lens was shifted, light conditions, etc. I take plenty of shots, each nudged around a bit at each location. Just moving one foot to the left changes everything.
(via Laughing Squid)
Image credits: Photographs by Shawn Clover