Subject: Telescopes slowly insinuating their way into mainstream photography
It's probably a side-effect of all the Milky Way photography people have been doing. But it's
interesting that people might try these devices as extra-long telephotos. They'll never replace
telephoto camera lenses, but if people understand how to use them (there are rules) they can get
some utility out of them. A long time ago, a Japanese photog used a 3900mm telescope (f/10) for
doing photography, but it wasn't exactly mainstream.