Quote Originally Posted by HiFiGuy1
He said "200m 2.0 prime", which is 1000 times longer than a 200mm prime.

Sorry for rambling, but this got me wondering, and google led me to this discussion of the longest focal length lenses ever made.


According tho these guys, the longest lens ever made for a camera is a 5200mm f/14. If you count telescopes, the longest is under 20 meters.


So much for the 200m f/2 prime.