The image above is the Boston Public Library’s McKim Building. The one below is Trinity Church designed by noted architect H.H. Richardson. They stand opposite each other in Boston’s Copley Square. I shot these at sunrise. Sunrise presents some challenges. Some parts of the photo can be too light and others can be too dark. HDR was the solution I used here. HDR stands for high-dynamic-range. To do this, I take photos of the same composition (with the camera mounted on a tripod) and use different camera settings to make 3-4 images with varying degrees of light and dark. The magic of the computer combines the different versions of the same images to produce the images you see here. Well, pretty much. I still made some changes to get them the way I liked. I used Lightroom to combine the images.