Andy Burns wrote:
On 12/04/2008 12:48, Adrian C wrote:

Mike Harrison wrote:

http://www.mars-cam.com/optical.html

Wrong URL?

That's not a lens

http://www.blogsmithmedia.com/www.en...-01sigma-8.jpg


/that's/ a lens!

http://www.engadget.com/2008/02/01/sigma-apo-200-500-f2-8-telephoto-lens-hands-on/

That's _only_ 500mm

You need this 5200mm one but don't take it for wedding photography, it's
inappropiate no matter how "wild life" the bride looks ;-)

http://www.canonfd.com/mirrorlenses/images/page10.jpg

Actually, taking pictures in the sky seems to be its application. The
following 1700mm is thus a compromise...

http://www.zeiss.com/c12567a8003b58b9/Contents-Frame/8baac109cb80bddfc12571e100393a1b

--
Adrian C