Yellowstone Canyon Falls measures 12498 x 19036 extra-large panoramic stitched image was created with CS5. The image was captured with a Canon 5D MK2 with a 400mm @ f 5.6 with an average exposure time of about 1/250 sec. ISO 200. It was finished with LR3. If you could zoom into the image you could clearly see about 30 people at various locations in the image, and 2 swallows flying through the mist of the falls.