I was able to use my DSLR Nikon D60 on the PST 40 for taking pictures. Uptill today I could only take afocal pictures with my iPhone but they are always too bringht are not in focus. Installing extra extentions on the zoom lens 8-24mm I could bring the sun in focal of the DSLR.
Trial and error to have the best view and sharpness and then editing using CS4. The result shows nice prominences on top and below of the picture.