Thanks for the posts, yeah i know its not installed correctly since when i try to use mental ray it wont work.
Nope wont work rendering it in maya, only batch render.
Yep the following is the installation instructions, there also is a source folder included in the lat long folder called source. In it are three folders all coded. But it doesn't say anything about what there for.

latlong_lens for Mental Ray v1.0 by Ralf Habel
ralf.habel@vi-motion.de

"Installation:

Copy latlong_lens.mi to the /Mayax.x/mentalray/include directory.

Copy latlong_lens.dll to the /Mayax.x/mentalray/lib directory.
(Or latlong_lens.so for Linux.)

Copy render_latlong_lens.xpm and latlong_lens.fti to the /Mayax.x/icons directory.



Add to your maya.rayrc file the lines

link "{MAYABASE}/lib/latlong_lens.{DSO}"

mi "{MAYABASE}/include/latlong_lens.mi"

after similar declarations.

The shader will show up in the Mental Ray Lenses tab.


For standalone use:

The lens shader has one parameter which mirrors the output
on a centered vertical line:

lens "latlong_lens" ("m_vmirror" [0,1])

Be sure to turn off scanline rendering.



A tutorial on how to use the shader can be found at:

https://www.vi-motion.de/latlong_Tutorial/
"
Cheers, Mark