The image above was exposed for 20 minutes at f/9.5, ISO 100 with in-camera noise reduction on a Canon 5D Mark II. Unlike my previous images from this location, this photo was made without the benefit of moonlight. I was testing a new 24mm tilt-shift lens that offers the benefits of perspective control for shooting architecture. By using 10mm of rise, the vertical lines of the building are straight without any need to correct the image in post-processing. Correcting perspective in Photoshop is easy enough, but you lose pixels in the process.
Having a lens with rise and fall, which are the proper terms for shifting up and down, also proved to be quite useful for dialing in compositions for interior architecture photographs of this building. Instead of spending a lot of time raising and lowering the 3 leg locks on the tripod, or risking stability by adjusting camera height with a tripod center column, compositions were quickly fine tuned using a little bit of rise and fall or shift. Have a look at the new images of the theater, morgue, and flooded chapel in the Oak Knoll Naval Hospital gallery.