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.
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.
Kids nowadays will come up with this, and just keep smiling at us,
dinosaurs, and don’t let us play because we might not understand
how, cause we’re so “seventies ?” 
And for those people of you that didn’t like the sound of the first
video, here’s something more scary…..
Do this by targeting the blue shaped square on the above figure.
And then simply count the darts you are throwing and that will be
inside the square, and additionally the darts that miss the board
and hit inside the marked blue area.
And after a few rounds, let’s say 1.000-100.000 should be enough
to see some good results.
Now use this formula:
A small hint for the frustrated, invite people that are able to aim
the upper left square, but are not so much pros that they will
always hit the board only.
Let your guests calculate Pi by playing some rounds of
“darts”.
Do this by targeting the blue shaped square on the above figure.
And then simply count the darts you are throwing and that will be
inside the square, and additionally the darts that miss the board
and hit inside the marked blue area.
And after a few rounds, let’s say 1.000-100.000 should be enough
to see some good results.
Now use this formula:
A small hint for the frustrated, invite people that are able to aim
the upper left square, but are not so much pros that they will
always hit the board only.
