Recent content by bobjim

damn, I talk some rubbish sometimes! *think* I've figured it all out now... ignore everything above! If an admin want's to close/delete this thread, please feel free.

[SOLVED] Understanding CCTV lenses Hey guys, I'm trying to get my head around the way a lens works... I've found the nodal points, and since the medium surrounding the lens is air constant refractive index (air) then they nodal points coincide with the principle planes, right? Also...