Finally there’s something for the real
tele-photographer enthusiast.Ladies and Gentleman,
the worlds “last civilian” tele-lens for photographers.

1700mm focal length
luminous intensity 1:4
weight 256 kg

And some overview figures to see the whole “monster” at once:


If you’re still looking for something “bigger” I can only suggest
to hijack the hubble space telescope, or google the net for earth
based extremely large telescope projects like thess one.