For many years, Davis explored the surprising diversity of birds in New York's Central Park. His afocal digital bird images here are made through Tele Vue eyepieces, connected by Tele Vue digital camera adapters to a Nikon camera. His images of New York City's "Central Park Hawk Saga" were widely distributed.
Extensive nature and astronomy imagines with the TV-60 can be found on Mark's "flickr" page.
See the write-up on Mark's images and TV-60 usage on our Tele Vue is for the Birds blog post.